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ICC
2009
IEEE
140views Communications» more  ICC 2009»
10 years 9 months ago
Approximation Algorithms for Traffic Grooming in WDM Rings
Abstract-- This paper addresses the problem of traffic grooming in WDM rings in which all traffic emanates from a single node and all other nodes are destination nodes. This "...
Kevin Corcoran, Seth Flaxman, Mark Neyer, Peter Sc...
ICC
2009
IEEE
130views Communications» more  ICC 2009»
10 years 9 months ago
User Profiling: A Method for Limited Feedback in OFDMA Systems
In the OFDMA downlink, obtaining Channel State Information (CSI) from users is necessary for the Base Station (BS) to optimize network performance by intelligently allocating resou...
Vinay R. Majjigi, Rajiv Agarwal, John M. Cioffi
ICC
2009
IEEE
149views Communications» more  ICC 2009»
10 years 9 months ago
Adoption of Cognitive Radio Scheme to Class-Based Call Admission Control
Abstract--By using cognitive radio technology, opportunistic spectrum access has the potential to solve the underused spectrum problem. In this paper, we employ class-based call ad...
Dongyue Xue, Hui Yu, Xinbing Wang, Hsiao-Hwa Chen
ICC
2009
IEEE
127views Communications» more  ICC 2009»
10 years 9 months ago
Capacity Analysis for MIMO Two-Hop Amplify-and-Forward Relaying Systems with the Source to Destination Link
This paper presents an ergodic capacity analysis of an amplify-and-forward multiple-input, multiple-output two-hop system including the source to destination (direct) link. We firs...
Abdulla Firag, Peter J. Smith, Matthew R. McKay
ICC
2009
IEEE
106views Communications» more  ICC 2009»
10 years 9 months ago
Hybrid ARQ with Rate Adaptation in Multiband OFDM UWB Systems
In this paper, we propose a cross-layer design (CLD) scheme combining rate adaptation and four types of hybrid automatic repeat request (HARQ) for multiband orthogonal frequency di...
Cheng-Xiang Wang, Heung-Gyoon Ryu, Hsiao-Hwa Chen,...
ICC
2009
IEEE
10 years 9 months ago
Cooperative Amplify-and-Forward Beamforming for OFDM Systems with Multiple Relays
In this paper, we propose frequency
Yang-wen Liang, Robert Schober
ICC
2009
IEEE
143views Communications» more  ICC 2009»
10 years 9 months ago
Throughput Improvement through Precoding in OFDMA Systems with Limited Feedback
In this paper, we study the possibility of throughput improvement through precoding in OFDMA based wireless systems with limited channel feedback. Precoding can increase the overal...
Sameh Sorour, Amin Alamdar Yazdi, Shahrokh Valaee,...
ICC
2009
IEEE
121views Communications» more  ICC 2009»
10 years 9 months ago
Three Layered Hidden Markov Models for Binary Digital Wireless Channels
Abstract--Generative models are created to be used in the design and performance assessment of high layer wireless communication protocols and some error control strategies. Genera...
Omar S. Salih, Cheng-Xiang Wang, David I. Laurenso...
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