Papers by ali zeynali Azim
Urban theory has historically oscillated between utopian aspiration and reductive functionalism, ... more Urban theory has historically oscillated between utopian aspiration and reductive functionalism, producing paradigms that illuminated fragments of urban life yet failed to confront the turbulence of the twenty-first century. Howard's Garden City yielded to capitalist sprawl; Le Corbusier's Radiant City collapsed into mechanical sterility; Burgess's concentric models oversimplified socio-spatial realities; Jacobs revived neighborhood vitality but remained bounded by localism; Lefebvre exposed the politics of space without institutional remedies; Castells reframed cities as networks deepening digital divides; Toffler's global village exalted technological optimism while accelerating cultural erosion; and Smart City models, despite digital efficiency, reproduced surveillance capitalism and technocratic exclusion. In response, this study advances the Metaverse Spider-Web Urban Design Theory (MSWUDT), reimagining the city not as a machine, ring, or platform, but as a living, self-healing web. Ten interwoven strands-safety, socio-cultural vitality, governance, environmental resilience, economy, energy, infrastructure, mobility, justice, and technology-form its ontological fabric. Each strand embodies sustainability, while resilience emerges from their interdependence. The novelty of MSWUDT lies in its integrative ontology and actionable policy framework. IoT functions as sensory nerves, AI as anticipatory cognition, blockchain as transparent memory, and the Metaverse as an immersive arena for simulation, participation, and cultural reproduction. Collectively, these tools enable layered safety for vulnerable groups, reinforce cultural heritage, institutionalize transparent governance, embed ecological resilience, and catalyze circular economies. Ultimately, MSWUDT articulates not only a framework for resilient and sustainable urban futures but also a philosophical trajectory toward human rationality and perfectionism in the digital age, offering a planetary blueprint for cities resilient enough to bend, yet never break, in the era of the Metaverse.
https://zenodo.org/records/17009517, 2025
The twenty-first century demands a radical paradigm shift in urban design. Traditional models-lin... more The twenty-first century demands a radical paradigm shift in urban design. Traditional models-linear, radial, and polycentric-fail to address the immersive, decentralized, and adaptive nature of future metaverse cities. The Metaverse Spider-Web Urban Design Theory, inspired by the resilience of spider webs, integrates ten core dimensions (security, socio-cultural, governance, environment, economy, energy, infrastructure, mobility, justice, technology) and positions Smart City as a transitional stage toward Metaversal Urbanism.
What has been effective in saving energy consumption in the old structures of Iranian cities is t... more What has been effective in saving energy consumption in the old structures of Iranian cities is the observance of climatic principles in traditional architecture and the use of local materials in the region. In Iran, more than 40% of energy consumption is related to residential buildings. On the other hand, studies in the field of climate solutions to reduce energy consumption in traditional Iranian buildings are limited, among the studies that have been conducted in this field, we can mention the article "Traditional Architecture Values of Semnan City in Optimizing Energy Consumption" written by Amir Hossein Salar, which describes the theoretical expression of architecture. Traditional has paid. In today's architecture, it is tried to ensure that the building can meet the thermal needs of the residents with minimal energy consumption, according to its design patterns. Meanwhile, traditional and native buildings in different climates of Iran are very suitable examples for examining the design patterns used in them. In this regard, this article aims to investigate the role of the orientation of the central courtyards of traditional houses in the hot and humid climate of Iran, from the point of view of optimizing the building's energy consumption and also creating thermal comfort for the residents. Hormozgan province is one of the hot and humid regions of Iran. In general, the weather of this province is influenced by desert and semi-desert weather. The weather of the coastal strip is very hot and humid in summers, but the temperature in this area does not exceed 52 degrees Celsius. The research process has been such that firstly, the site and the climate of the region, as well as the desired scenarios for the pattern of the central courtyards in the desired context, have been investigated and recognized. Then, with the help of simulation in Design Builder software, the orientation pattern
What has been effective in saving energy consumption in the old structures of Iranian cities is t... more What has been effective in saving energy consumption in the old structures of Iranian cities is the observance of climatic principles in traditional architecture and the use of local materials in the region. In Iran, more than 40% of energy consumption is related to residential buildings. On the other hand, studies in the field of climate solutions to reduce energy consumption in traditional Iranian buildings are limited, among the studies that have been conducted in this field, we can mention the article "Traditional Architecture Values of Semnan City in Optimizing Energy Consumption" written by Amir Hossein Salar, which describes the theoretical expression of architecture. Traditional has paid. In today's architecture, it is tried to ensure that the building can meet the thermal needs of the residents with minimal energy consumption, according to its design patterns. Meanwhile, traditional and native buildings in different climates of Iran are very suitable examples for examining the design patterns used in them. In this regard, this article aims to investigate the role of the orientation of the central courtyards of traditional houses in the hot and humid climate of Iran, from the point of view of optimizing the building's energy consumption and also creating thermal comfort for the residents. Hormozgan province is one of the hot and humid regions of Iran. In general, the weather of this province is influenced by desert and semi-desert weather. The weather of the coastal strip is very hot and humid in summers, but the temperature in this area does not exceed 52 degrees Celsius. The research process has been such that firstly, the site and the climate of the region, as well as the desired scenarios for the pattern of the central courtyards in the desired context, have been investigated and recognized. Then, with the help of simulation in Design Builder software, the orientation pattern
European Scientific Journal, ESJ, Dec 29, 2014
Dynamic urban processes and constant evolutions in the types of living as well as technological a... more Dynamic urban processes and constant evolutions in the types of living as well as technological advances have changed and manipulated living environments for human beings. The increasing growth in the population of urban regions and the escalation of socioeconomic problems have forced human beings to live in matchbox apartments during the last a few decades. Modern human beings have to encounter different daily activities to make living; hence, having a shelter which can bring peace and relief has become a dream for him. Recent urban views and sights have been changed into apartments and tall towers in the residential areas which have made human habitats gloomy and bleak and have created several problems for modern citizens. It can be argued that, regardless of the internal peace of houses, urban citizens need beautiful and green natural views and sceneries far from the tensions of work environments so as to comfort their minds and imaginations. Projects for modernizing, optimizing and creating new urban spaces are realized in different areas for many years. The present study is intended to examine the concept and idea of green garden which has been proposed by developed countries. The concept of green garden was proposes as an attempt to fulfill tranquility, peace and a desirable habitat. The present study investigated and evaluated this proposition based on the following criteria: compatibility, desirability, efficiency, comfort, safety and health.
Electronic city: A City of Today and Tomorrow
... 2 - 3. [5] Rohani Parisa, at el, 2010, Correlation Ship Between Electronic City and Electroni... more ... 2 - 3. [5] Rohani Parisa, at el, 2010, Correlation Ship Between Electronic City and Electronic Municipality, Second International Conference on Electronic City, Ordibehesht, 22nd to 23 rd, Tehran, pp. 11-13. [6] khakpoor Baratali and Amiri Aghil, 2011. ...
According to the recent drop in level of groundwater and high crisis of Bagh-Malek plain's water ... more According to the recent drop in level of groundwater and high crisis of Bagh-Malek plain's water sources, the present study has been designed with the aim of developing a sustainable cropping pattern and supplying groundwater resources. Required information for this study is collected by both questionnaire and by using statistical sources of Jahad-Keshavarzi site and Water Organization of Khuzestan province in 2013. The results show that water inputs are considered the most limiting production factor in region agricultural sector. Also use of irrigation methods can increase to be twice capacity of region agricultural products. The main propose of this study on considering patterns which are considered Intergenerational sustainability on scarcity inputs such as water.
This study explores the role of information technology in urban management and stable development... more This study explores the role of information technology in urban management and stable development. According to cities has been developed increasingly today, it also impresses increase of cities population and it makes numerous problems for management of cities and in parallel stable development in the world. In recent decades, advent of information and communication technology as well as electronic city, electronic municipality and citizen, cheers the scholars in the international scientific community that the phenomenon of new information and communication technology can make modern management system to manage cities. Also, this system helps to stable development of cities. The purpose of this study is to explain the role of information technology in urban management and stable development. Current study findings showed that information and communication technology play a major role in management and stable development of cities. [Shohre Bagherzadeh Kasiri, Ali Zeynali Azim. The r...
Optics Communications, 2019
Optical-orthogonal frequency division multiplexing (O-OFDM) is regarded as an effective scheme fo... more Optical-orthogonal frequency division multiplexing (O-OFDM) is regarded as an effective scheme for intensity modulation and direct detection (IM-DD) based visible light communication (VLC) systems. State-of-the-art O-OFDM approaches complying with IM-DD constraints are; directcurrent (DC) biased O-OFDM (DCO-OFDM) and asymmetrically clipped (AC)O-OFDM. ACO-OFDM has half the spectral efficiency (SE) of DCO-OFDM, howbeit, its SE can be augmented towards that of DCO-OFDM using layered ACO-OFDM (LACO-OFDM). Nevertheless, LACO-OFDM suffers from a high peak-to-average power ratio (PAPR). Forthright extension of PAPR reduction techniques devised for ACO-OFDM to LACO-OFDM can be unwieldy and complex. Hence, precoding can be an alternative to counterbalance the high PAPR without a considerable increase in complexity. As our contribution, we comprehensively investigate the performances of Fourier transform (FT) and Hartley transform (HT) precoding on LACO-OFDM. The bit error rate (BER) is analyzed in additive white Gaussian noise (AWGN) and time dispersive channels. Furthermore, the impact of superimposition of layers, PAPR, electrical-to-optical power conversion efficiency and system complexities are also investigated.
European Scientific Journal, Dec 29, 2014
This study provides a framework for enterprise architecture in electronic city is electronic muni... more This study provides a framework for enterprise architecture in electronic city is electronic municipality. Nowadays, information technology as an emerging phenomenon has a special place in the world. Development of information and communication technology causes many changes in various fields, including emerging e-cities, municipalities and citizens. However, e-city and e-municipality need essential enterprise architecture. In order to develop enterprise architecture of e-city and e-municipality, enterprise architecture maturity method should be applied. Therefore, one of the most important needs of organizations is to choose important activities according to limitations. The studies show that there is a close relationship between IT, enterprise architecture, e-city and e-municipality. This study aimed to clarify the concept of IT, enterprise architecture, electronic city and e-municipality and how they are related to each other. Is the existence of each of IT, enterprise architecture, electronic and electronic municipal requires each other?
European Scientific Journal, Dec 29, 2014
Increasing urbanization and rapid population expansion and its specific problems such as air and ... more Increasing urbanization and rapid population expansion and its specific problems such as air and water pollution, environmental degradation, increase in mental illness, housing, infrastructure, education and transportation and other problems of urban society more than ever threatens this contrary which is against the principles of sustainable development and green city projects is one of the urban environment measures in this field that has achieved success in the world. The idea is that the city is a place that forms human opportunities and abilities and in addition each city has its own life, soul and even its own special character therefore each city most be recognized as a whole and form it as a place of residence. Specific problems of urbanization has faced urban management with challenges in the field of population density, housing shortages, environmental degradation, pollution and supplying infrastructure services and facilities, and issues of the Green City project is more involved which results less public participating in cities sustainable development. This study analyzes the characteristics of green city's indexes in Sheikh Tappeh neighborhood in Urmia. This is a descriptive -analysis study and data collection was conducted by library documents and field survey. According to survey results Sheikh Tappeh neighborhood is far from favorable indicators of health status and standards of green city and city planning and public participation is required.
Вісник Проблем Біології І Медицини, 2013
European Scientific Journal, Dec 29, 2014
Dynamic urban processes and constant evolutions in the types of living as well as technological a... more Dynamic urban processes and constant evolutions in the types of living as well as technological advances have changed and manipulated living environments for human beings. The increasing growth in the population of urban regions and the escalation of socioeconomic problems have forced human beings to live in matchbox apartments during the last a few decades. Modern human beings have to encounter different daily activities to make living; hence, having a shelter which can bring peace and relief has become a dream for him. Recent urban views and sights have been changed into apartments and tall towers in the residential areas which have made human habitats gloomy and bleak and have created several problems for modern citizens. It can be argued that, regardless of the internal peace of houses, urban citizens need beautiful and green natural views and sceneries far from the tensions of work environments so as to comfort their minds and imaginations. Projects for modernizing, optimizing and creating new urban spaces are realized in different areas for many years. The present study is intended to examine the concept and idea of green garden which has been proposed by developed countries. The concept of green garden was proposes as an attempt to fulfill tranquility, peace and a desirable habitat. The present study investigated and evaluated this proposition based on the following criteria: compatibility, desirability, efficiency, comfort, safety and health.
Digital Signal Processing, 2016
Multimodulus algorithms (MMA) based adaptive blind equalizers mitigate inter-symbol interference ... more Multimodulus algorithms (MMA) based adaptive blind equalizers mitigate inter-symbol interference and recover carrier-phase in communication systems by minimizing dispersion in the in-phase and quadrature components of the received signal using the respective components of the equalized sequence in a decoupled manner. These equalizers are mostly incorporated in bandwidth-efficient digital receivers which rely on quadrature amplitude modulation (QAM) signaling. The nonlinearities in the update equations of these equalizers tend to lead to difficulties in the study of their steady-state performance. This paper presents originally the steady-state excess mean-square-error (EMSE) analysis of different members of multimodulus equalizers MMAp-q in a non-stationary environment using energy conservation arguments, and thus bypassing the need for working directly with the weight error covariance matrix. In doing so, the exact and approximate expressions for the steady-state mean-squareerror of several MMA based blind equalization algorithms are derived, including MMA2-2, MMA2-1, MMA1-2, and MMA1-1. The accuracy of the derived analytical results is validated using Monte-Carlo experiments and found to be in close agreement.
Signal Processing, 2015
Multimodulus algorithms (MMA) based adaptive blind equalizers mitigate inter-symbol interference ... more Multimodulus algorithms (MMA) based adaptive blind equalizers mitigate inter-symbol interference in a digital communication system by minimizing dispersion in the quadrature components of the equalized sequence in a decoupled manner, i.e., the in-phase and quadrature components of the equalized sequence are used to minimize dispersion in the respective components of the received signal. These unsupervised equalizers are mostly incorporated in bandwidth-efficient digital receivers (wired, wireless or optical) which rely on quadrature amplitude modulation based signaling. These equalizers are equipped with nonlinear error-functions in their update expressions which makes it a challenging task to evaluate analytically their steady-state performance. However, exploiting variance relation theorem, researchers have recently been able to report approximate expressions for steady-state excess mean square error (EMSE) of such equalizers for noiseless but interfering environment. In this work, in contrast to existing results, we present exact steady-state tracking analysis of two multimodulus equalizers in a non-stationary environment. Specifically, we evaluate expressions for steady-state EMSE of two equalizers, namely the MMA2-2 and the βMMA. The accuracy of the derived analytical results is validated using different set experiments and found in close agreement.
Statistical Spectrum Sensing in Cognitive Radio
2012 10th International Conference on Frontiers of Information Technology, 2012
Statistical spectrum sensing is a promising method which can reliably detect the primary users wh... more Statistical spectrum sensing is a promising method which can reliably detect the primary users while requiring little prior information in cognitive radio networks. In this paper, we present an overview of sensing methods based on Goodness-of-Fit tests. We discuss the performance of Energy Detector (ED) sensing, Anderson Darling (AD) sensing, Cram'er VonMises(CVM) sensing and Order Statistic (OS) sensing and we compare the results using Monte-Carlo simulations. It is shown that OS sensing outperforms ED sensing, CVM sensing and AD sensing. Next it is shown through simulations that the OS test statistic does not provide maximum probability of detection for a desired probability of false alarm and results are provided showing the regions of high probability of detection for desired probability of false alarm.
Analysis of modulation classification techniques using Goodness of Fit testing
2013 IEEE 9th International Conference on Emerging Technologies (ICET), 2013
ABSTRACT
2013 IEEE 9th International Conference on Emerging Technologies (ICET), 2013
A modulation classification method based on modified Kolmogorov-Smirnov (K-S) test is proposed. U... more A modulation classification method based on modified Kolmogorov-Smirnov (K-S) test is proposed. Unlike modulation classification based on K-S test, the proposed method evaluates the sum of the difference between the empirical distribution obtained from the features extracted from received signals and the hypothesized distribution for each modulation candidate in pool. The results have been evaluated using Quadrature Amplitude Modulation (QAM) for AWGN channel using Monte Carlo simulations. Extensive simulation results demonstrate that the proposed modulation classification method based on modified K-S test offers superior performance as compared to the method based on K-S test.
Electronic city: A City of Today and Tomorrow
... 2 - 3. [5] Rohani Parisa, at el, 2010, Correlation Ship Between Electronic City and Electroni... more ... 2 - 3. [5] Rohani Parisa, at el, 2010, Correlation Ship Between Electronic City and Electronic Municipality, Second International Conference on Electronic City, Ordibehesht, 22nd to 23 rd, Tehran, pp. 11-13. [6] khakpoor Baratali and Amiri Aghil, 2011. ...
Electronics Letters, 2012
Presented is a non-data-aided (NDA) signal-to-noise ratio (SNR) estimation method for amplitude-p... more Presented is a non-data-aided (NDA) signal-to-noise ratio (SNR) estimation method for amplitude-phase shift-keying (APSK) in the presence of additive white Gaussian noise over a quasi-static channel. The proposed estimator is based on a rank discrimination test and uses a look-up table for SNR estimation. The performance of the proposed estimator is evaluated for 8APSK and 16APSK. It is shown through Monte-Carlo simulations that the proposed estimator outperforms existing NDA moment-based SNR estimators in terms of normalised mean-square error.
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Papers by ali zeynali Azim