WorldCat Identities

ʻAbbās, Muḥammad 1948-2004

Overview
Works: 29 works in 35 publications in 2 languages and 90 library holdings
Genres: Controversial literature 
Roles: Author
Publication Timeline
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Most widely held works by Muḥammad ʻAbbās
Naʻam-- naḥnu naẓlimu al-Naṣārá by Muḥammad ʻAbbās( Book )

2 editions published in 2011 in Arabic and held by 16 WorldCat member libraries worldwide

MIMO Channel Modelling for Satellite Communications by Muḥammad ʻAbbās( Book )

2 editions published in 2010 in English and held by 2 WorldCat member libraries worldwide

This chapter provides an overview of propagation impairments on LMS communication links, probability distributions describing these fading effects and channel models developed using these probability distributions. Proper knowledge of propagation impairments and channel models is necessary for the design and performance assessment of advanced transceiver techniques employed to establish reliable communication links in LMS communication systems. The main focus lies on highlighting which are the effects and the relevant propagation models need to be considered for LMS communication links in order to accurately estimate the propagation impairments. The performance of LMS communication systems depend on different factors including operating frequency, elevation angles, geographic location, climate etc. Different approaches can be used to find the effects of these factors on LMS communication links such as physical-statistical channel models which are more accurate but require long simulation times and are complex. On the other hand statistical methods are simple and require less computational efforts. In addition, due to diverse nature of propagation environments, it is appropriate to use stochastic approaches for the performance assessment of LMS communication links
The nomadic and the sedentary : polar complementaries, not polar opposites by Muḥammad ʻAbbās( )

1 edition published in 1973 in English and held by 2 WorldCat member libraries worldwide

Social issues and problems by ʼDayo Ogunniyi( Book )

2 editions published in 2009 in English and held by 2 WorldCat member libraries worldwide

Mobility Aspects of Physical Layer in Future Generation Wireless Networks by Asad Mehmood( Book )

1 edition published in 2011 in English and held by 1 WorldCat member library worldwide

Cooperative Beamforming and Modern Spatial Diversity Techniques for Power Efficient Wireless Sensor Networks by Tommy Hult( Book )

1 edition published in 2011 in English and held by 1 WorldCat member library worldwide

Advanced communication techniques and applications for high-altitude platforms( Book )

1 edition published in 2008 in English and held by 1 WorldCat member library worldwide

Loran-C Skywave Delay Detection using the ARMA Algorithm by Muḥammad ʻAbbās( )

1 edition published in 1998 in English and held by 1 WorldCat member library worldwide

The autoregressive moving average technique (ARMA) is applied to the problem of estimating the delay of Loran-C skywaves. The performance of this technique is evaluated and compared with Fourier-based methods. The simulation results show thatthe ARMA algorithm yields significantly greater estimation accuracy and that it can also operate successfully with very noisy signals
Heavy Metals in Sediments Core Along ‎Shatt AL-Arab Estuary Heavy Metals in Sediment by Zahraa Alshamsi( )

1 edition published in 2017 in English and held by 1 WorldCat member library worldwide

Design and Simulation of Improved Linearity CMOS Low Noise Amplifier by Farooq Khaleel( )

1 edition published in 2017 in English and held by 1 WorldCat member library worldwide

Wireless Sensor Networks Applications via High Altitude Systems by Zhe Yang( Book )

1 edition published in 2011 in English and held by 1 WorldCat member library worldwide

Downlink Coexistence Performance Assessment and Techniques for WiMAX Services from High Altitude Platform and Terrestrial Deployments by Zhe Yang( )

1 edition published in 2008 in English and held by 1 WorldCat member library worldwide

We investigate the performance and coexistence techniques for worldwide interoperability for microwave access (WiMAX) delivered from high altitude platforms (HAPs) and terrestrial systems in shared 3.5 GHz frequency bands. The paper shows that it is possible to provide WiMAX services from individual HAP systems. The coexistence performance is evaluated by appropriate choice of parameters, which include the HAP deployment spacing radius, directive antenna beamwidths based on adopted antenna models for HAPs and receivers. Illustrations and comparisons of coexistence techniques, for example, varying the antenna pointing offset, transmitting and receiving antenna beamwidth, demonstrate efficient ways to enhance the HAP system performance while effectively coexisting with terrestrial WiMAX systems
Fractionally Spaced Spatial Adaptive Equalization of S-UMTS Mobile Terminals by Jörgen Nordberg( )

1 edition published in 2002 in English and held by 1 WorldCat member library worldwide

In this paper we present fractionally spaced adaptive equalization techniques and space diversity combined receiver and evaluate their performance for the downlink of S-UMTS system. The conventional "training" (or non-blind) and the "unsupervised" (or blind)adaptive equalization algorithms are both investigated. Simulation results show that the equalizers are robust to Doppler shift and nonlinearity effects due to TWT amplifiers aboard the satellite. It is also shown that even with a moderate array size of two antenna elements, a significant improvement in terminal performance is achieved
Space-Time Diversity Techniques for WCDMA High Altitude Platform Systems by Muḥammad ʻAbbās( Book )

1 edition published in 2010 in English and held by 1 WorldCat member library worldwide

In this chapter we have investigated the possibility of multiple HAP coverage of a common cell area in WCDMA systems with and without space-time diversity techniques. Simulation results have shown that as the service data rate decreases, the number of possible HAP base stations that can be deployed to cover the same geographical area increases. It has further been shown that this increment in number of HAP base stations can be enhanced to some extent by using space-time diversity techniques. We have also shown that the worst case position of the HAPs is in the centre of the cell if the cell radius is small (20 km) and at the cell boundary for large cells (20 km). We can conclude that there is a possibility of deploying 3-5 (SISO), or 5-8 (1x2 SIMO, 2x2 MIMO and 4x4 MIMO) HAPs covering the same cell area in response to an increase in traffic demands, depending on the type of service used. There also appear to be
Performance Evaluation of WiMAX Broadband from High Altitude Platform Cellular System and Terrestrial Coexistence Capability by Zhe Yang( )

1 edition published in 2008 in English and held by 1 WorldCat member library worldwide

The performance obtained from providing worldwide interoperability for microwave access (WiMAX) from high altitude platforms (HAPs) with multiple antenna payloads is investigated, and the coexistence capability with multiple-operator terrestrial WiMAX deployments is examined. A scenario composed of a single HAP and coexisting multiple terrestrial WiMAX base stations deployed inside the HAP coverage area (with radius of 30 km) to provide services to fixed users with the antenna mounted on the roof with a directive antenna to receive signals from HAPs is proposed. A HAP cellular configuration with different possible reuse patterns is established. The coexistence performance is assessed in terms of HAP downlink and uplink performance, interfered by terrestrial WiMAX deployment. Simulation results show that it is effective to deliver WiMAX via HAPs and share the spectrum with terrestrial systems
High Altitude Platforms for Wireless Mobile Communication Applications by Zhe Yang( Book )

1 edition published in 2010 in English and held by 1 WorldCat member library worldwide

Assessment of Indoor Propagation and Antenna Performance for Bluetooth Wireless Communication Links by Tommy Hult( Book )

1 edition published in 2011 in English and held by 1 WorldCat member library worldwide

Learning human anatomy : using anatomical models by Muḥammad ʻAbbās( Book )

1 edition published in 1996 in English and held by 1 WorldCat member library worldwide

al-Binya as-sardīya fi ʹn-naṣṣ aš-šiʻrī by Muḥammad ʻAbbās( Book )

1 edition published in 2004 in Arabic and held by 1 WorldCat member library worldwide

Performance Improvements for Sector Antennas using Feature Extraction and Spatial Interference Cancellation by Jörgen Nordberg( )

1 edition published in 2002 in English and held by 1 WorldCat member library worldwide

Effective utilization of the spatial domain enhances the capacity of a mobile radio network. A common technique is to use sector antennas, where the sectors are formed by weighting the outputs from the antenna elements. This results in spatial domain selectivity, which significantly improves the signal-to-noise and interference ratio in the received signals. However, the operation of the sector antenna will be limited by the sidelobes of the corresponding beam patterns. By introducing a blind spatial interference canceler that combines the fix beamformers in the sector antenna with blind signal separation, a significant improvement in the multi-user interference suppression can be achieved. Thus, it will be able to efficiently handle the near-far problem, where the users are received with different power. The blind signal separation is performed by an independent component analysis algorithm. The convergence rate of the algorithm is significantly improved compared to the standard formulation by taking into account the modulation format. The algorithm is further improved by introducing a forgetting factor on the weight update. The blind spatial interference canceler is evaluated by simulations using the mean square error and the bit error rate as quality measures. The results show that the mean square error obtained from the blind blind spatial interference canceler is within 0.5 dB from the optimum Wiener solution for signal-to noise ratios greather than 0 dB
 
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Advanced communication techniques and applications for high-altitude platforms
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Alternative Names
Abbas, Abu 1948-2004

Abbas, Mohammed 1948-2004

ʿAbbās Muḥammad al- 1948-2004

Abū ʿAbbās 1948-2004

Abu Abbas palästinensischer Gründer und Führer der Palästinensischen Befreiungsfront (PLF)

Abu Abbas palestyński terrorysta

Abu Abbas politicus uit Palestina (1948-2004)

Abū al-ʻAbbās 1948-2004

Abūl-ʻAbbās 1948-2004

Ebu Abbas

Mohammed Abbas 1948-2004

Mohammed Zaïdan

Muḥammad ʿAbbās 1948-2004

Muhammad Zaidan Palestinian terrorist

Muhammad Zaydan politico palestinese

Zaidān, Muḥammad 1948-2004

Zaydān, Muḥammad 1948-2004

Zeidan Mohammed 1948-2004

אבו עבאס

أبو العباس 1948-2004

ابو عباس

ابو عباس 1948-2004

العباس محمد 1948-2004

زيدان، محمد، 1948-2004

عباس، محمد، 1948-2004

Languages
English (22)

Arabic (9)