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TWC
2010
9 years 5 months ago
Rateless coding for hybrid free-space optical and radio-frequency communication
Abstract--Free-space optical (FSO) transmission systems enable high-speed communication with relatively small deployment costs. However, FSO suffers a critical disadvantage, namely...
Ali AbdulHussein, Anand Oka, Trung Thanh Nguyen 00...
TON
2010
119views more  TON 2010»
9 years 5 months ago
Modulation Rate Adaptation in Urban and Vehicular Environments: Cross-Layer Implementation and Experimental Evaluation
Accurately selecting modulation rates for time-varying channel conditions is critical for avoiding performance degradations due to rate overselection when channel conditions degra...
Joseph Camp, Edward W. Knightly
TCOM
2010
162views more  TCOM 2010»
9 years 5 months ago
Power Allocation in MMSE Relaying over Frequency-Selective Rayleigh Fading Channels
Abstract--This paper develops an amplify-and-forward relaying scheme for multiuser wireless cooperative networks under frequency-selective block-fading. Single-carrier frequency di...
Tung T. Pham, Ha H. Nguyen, Hoang Duong Tuan
CORR
2010
Springer
171views Education» more  CORR 2010»
9 years 5 months ago
Online Learning in Opportunistic Spectrum Access: A Restless Bandit Approach
We consider an opportunistic spectrum access (OSA) problem where the time-varying condition of each channel (e.g., as a result of random fading or certain primary users' activ...
Cem Tekin, Mingyan Liu
ICC
2009
IEEE
128views Communications» more  ICC 2009»
9 years 8 months ago
Denoising Strategy for Convolutionally-Coded Bidirectional Relaying
In this paper, we present a forwarding strategy for bidirectional relaying channels in which trellis
Toshiaki Koike-Akino, Petar Popovski, Vahid Tarokh
MASS
2010
248views Communications» more  MASS 2010»
9 years 8 months ago
Adaptive exploitation of cooperative relay for high performance communications in MIMO ad hoc networks
With the popularity of wireless devices and the increase of computing and storage resources, there are increasing interests in supporting mobile computing techniques. Particularly...
Shan Chu, Xin Wang
ICASSP
2010
IEEE
9 years 8 months ago
Energy-aware adaptive OFDM systems
An effective way of reducing the energy consumption without affecting the quality of service is by adapting to the channel conditions. In this paper we describe one such scheme fo...
Yunus Emre, Chaitali Chakrabarti
PE
2007
Springer
97views Optimization» more  PE 2007»
9 years 10 months ago
On processor sharing and its applications to cellular data network provisioning
To develop simple traffic engineering rules for the downlink of a cellular system using Proportional Fairness (PF) scheduling, we study the “strict” and “approximate” ins...
Yujing Wu, Carey L. Williamson, Jingxiang Luo
TWC
2008
113views more  TWC 2008»
9 years 10 months ago
PHY-layer Fairness in Amplify and Forward Cooperative Diversity Systems
We deal with the concept of physical-layer fairness in amplify and forward cooperative diversity systems, which reflects the need for equally allocating the consumed power among th...
Diomidis S. Michalopoulos, George K. Karagiannidis
USENIX
2004
9 years 11 months ago
Time-based Fairness Improves Performance in Multi-Rate WLANs
The performance seen by individual clients on a wireless local area network (WLAN) is heavily influenced by the manner in which wireless channel capacity is allocated. The popular...
Godfrey Tan, John V. Guttag
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