Sciweavers

139 search results - page 23 / 28
» Optimal transmission rate for ultra low-power receivers
Sort
View
TCOM
2010
117views more  TCOM 2010»
13 years 6 months ago
Optimal Coding Strategies for Bidirectional Broadcast Channels Under Channel Uncertainty
Bidirectional relaying is a promising approach to improve the performance in wireless networks such as sensor, ad-hoc, and even cellular systems. Bidirectional relaying applies to...
Rafael F. Wyrembelski, Igor Bjelakovic, Tobias J. ...
ICC
2007
IEEE
178views Communications» more  ICC 2007»
14 years 2 months ago
Cooperation and Cognitive Radio
Abstract— Cooperation is increasingly regarded as a key technology for tackling the challenges of a practical implementation of cognitive radio. In this paper, we first give a b...
Osvaldo Simeone, Jonathan Gambini, Yeheskel Bar-Ne...
TSP
2008
101views more  TSP 2008»
13 years 7 months ago
ARQ by Subcarrier Assignment for OFDM-Based Systems
We consider two automatic repeat request (ARQ) schemes based on subcarrier assignment in orthogonal frequency-division multiplexing (OFDM)-based systems: single ARQ subcarrier assi...
Chin Keong Ho, Hongming Yang, Ashish Pandharipande...
TON
2010
136views more  TON 2010»
13 years 2 months ago
Distributed Opportunistic Scheduling With Two-Level Probing
Distributed opportunistic scheduling (DOS) is studied for wireless ad-hoc networks in which many links contend for the channel using random access before data transmissions. Simpl...
P. S. Chandrashekhar Thejaswi, Junshan Zhang, Man-...
TCSV
2010
13 years 2 months ago
Layered Wireless Video Multicast Using Relays
Wireless video multicast enables delivery of popular events to many mobile users in a bandwidth efficient manner. However, providing good and stable video quality to a large number...
Özgü Alay, Thanasis Korakis, Yao Wang, E...