The Experts below are selected from a list of 13545 Experts worldwide ranked by ideXlab platform
Arogyaswami Paulraj - One of the best experts on this subject based on the ideXlab platform.
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Technologies and performance for non-line-of-sight Broadband Wireless Access networks
IEEE Communications Magazine, 2002Co-Authors: David Gesbert, Luc Haumonte, Helmut Bölcskei, Rajeev Krishnamoorthy, Arogyaswami PaulrajAbstract:This article presents emerging technologies for upcoming non-line-of-sight fixed or stationary Broadband Wireless Access systems. We describe design trade-offs for overall maximization of the radio capacity and coverage of fixed Wireless Access (FWA) in multicell interference- and fading-prone environments. We characterize quantitatively the impact of key emerging radio technologies on the overall performance.
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Fixed Broadband Wireless Access: state of the art, challenges, and future directions
IEEE Communications Magazine, 2001Co-Authors: H. Bolcskel, Arogyaswami Paulraj, K. V. S. Hari, Rohit U. NabarAbstract:This article provides an overview of fixed Broadband Wireless Access technology. Focusing on the band below 3 GHz, we describe BWA service and carrier needs, deployment scenarios, architectural requirements, physical layer, medium Access control, and radio link protocol requirements. We characterize fixed BWA channels, outline the major challenges of fixed BWA, and study requirements for future BWA systems. Finally, we show that the use of multiple antennas at both ends of a fixed Wireless link provides significant leverages.
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Smart antennas for Broadband Wireless Access networks
IEEE Communications Magazine, 1999Co-Authors: K. Sheikh, David Gesbert, D. Gore, Arogyaswami PaulrajAbstract:This article is an overview of smart antenna applications in fixed Broadband Wireless Access networks. Different smart antenna techniques are described including advances such as "spatial multiplexing" that can dramatically increase the performance of BWA networks. The impact of SA techniques on capacity and throughput of BWA networks is discussed.
Xuemin Shen - One of the best experts on this subject based on the ideXlab platform.
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optimal relay station placement in Broadband Wireless Access networks
IEEE Transactions on Mobile Computing, 2010Co-Authors: Bin Lin, Xuemin Shen, Liangliang Xie, Janos TapolcaiAbstract:To satisfy the stringent requirement of capacity enhancement in Wireless networks, cooperative relaying is envisioned as one of the most effective solutions. In this paper, we study the capacity enhancement problem by way of relay stations (RSs) placement to achieve an efficient and scalable design in Broadband Wireless Access networks. To fully exploit the performance benefits of cooperative relaying, we develop an optimization framework to maximize the capacity as well as to meet the minimal traffic demand by each subscriber station (SS). In specific, the problem of joint RS placement and bandwidth allocation is formulated into a mixed-integer nonlinear program. We reformulate it into an integer linear program which is solvable by CPLEX. To avoid exponential computation time, a heuristic algorithm is proposed to efficiently solve the formulated problem. Numerical analysis is conducted through case studies to demonstrate the performance gain of cooperative relaying and the comparison between the proposed heuristic algorithm against the optimal solutions.
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Unified Radio Network for Broadcasting and Broadband Wireless Access [Advances in Mobile Multimedia]
IEEE Communications Magazine, 2007Co-Authors: Weiwei Wang, Changjia Chen, Zihua Guo, Yunbao Zeng, Xuemin ShenAbstract:In this article we propose a unified radio network architecture, Broadband Wireless multimedia (BWM), which integrates broadcasting service and Broadband Wireless Access service at both the application and physical layers. A simple, flexible, and comprehensive radio resource management framework is developed for the unified radio network. It is shown that the proposed radio network architecture has many advantages over existing ones. In addition, the new architecture is currently being considered in China for the system level design.
Weiwei Wang - One of the best experts on this subject based on the ideXlab platform.
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Unified Radio Network for Broadcasting and Broadband Wireless Access
2007Co-Authors: Weiwei Wang, Changjia Chen, Beijing Jiaotong, Zihua GuoAbstract:In this article we propose a unified radio network architecture, Broadband Wireless multimedia (BWM), which integrates broadcasting service and Broadband Wireless Access service at both the application and physical layers. A simple, flexible, and comprehensive radio resource management framework is developed for the unified radio network. It is shown that the proposed radio network architecture has many advantages over existing ones. In addition, the new architecture is currently being considered in China for the system level design.
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Unified Radio Network for Broadcasting and Broadband Wireless Access [Advances in Mobile Multimedia]
IEEE Communications Magazine, 2007Co-Authors: Weiwei Wang, Changjia Chen, Zihua Guo, Yunbao Zeng, Xuemin ShenAbstract:In this article we propose a unified radio network architecture, Broadband Wireless multimedia (BWM), which integrates broadcasting service and Broadband Wireless Access service at both the application and physical layers. A simple, flexible, and comprehensive radio resource management framework is developed for the unified radio network. It is shown that the proposed radio network architecture has many advantages over existing ones. In addition, the new architecture is currently being considered in China for the system level design.
David Gesbert - One of the best experts on this subject based on the ideXlab platform.
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Technologies and performance for non-line-of-sight Broadband Wireless Access networks
IEEE Communications Magazine, 2002Co-Authors: David Gesbert, Luc Haumonte, Helmut Bölcskei, Rajeev Krishnamoorthy, Arogyaswami PaulrajAbstract:This article presents emerging technologies for upcoming non-line-of-sight fixed or stationary Broadband Wireless Access systems. We describe design trade-offs for overall maximization of the radio capacity and coverage of fixed Wireless Access (FWA) in multicell interference- and fading-prone environments. We characterize quantitatively the impact of key emerging radio technologies on the overall performance.
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Smart antennas for Broadband Wireless Access networks
IEEE Communications Magazine, 1999Co-Authors: K. Sheikh, David Gesbert, D. Gore, Arogyaswami PaulrajAbstract:This article is an overview of smart antenna applications in fixed Broadband Wireless Access networks. Different smart antenna techniques are described including advances such as "spatial multiplexing" that can dramatically increase the performance of BWA networks. The impact of SA techniques on capacity and throughput of BWA networks is discussed.
Zihua Guo - One of the best experts on this subject based on the ideXlab platform.
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Unified Radio Network for Broadcasting and Broadband Wireless Access
2007Co-Authors: Weiwei Wang, Changjia Chen, Beijing Jiaotong, Zihua GuoAbstract:In this article we propose a unified radio network architecture, Broadband Wireless multimedia (BWM), which integrates broadcasting service and Broadband Wireless Access service at both the application and physical layers. A simple, flexible, and comprehensive radio resource management framework is developed for the unified radio network. It is shown that the proposed radio network architecture has many advantages over existing ones. In addition, the new architecture is currently being considered in China for the system level design.
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Unified Radio Network for Broadcasting and Broadband Wireless Access [Advances in Mobile Multimedia]
IEEE Communications Magazine, 2007Co-Authors: Weiwei Wang, Changjia Chen, Zihua Guo, Yunbao Zeng, Xuemin ShenAbstract:In this article we propose a unified radio network architecture, Broadband Wireless multimedia (BWM), which integrates broadcasting service and Broadband Wireless Access service at both the application and physical layers. A simple, flexible, and comprehensive radio resource management framework is developed for the unified radio network. It is shown that the proposed radio network architecture has many advantages over existing ones. In addition, the new architecture is currently being considered in China for the system level design.
