Sciweavers

85 search results - page 1 / 17
» ARQ Diversity in Fading Random Access Channels
Sort
View
CORR
2006
Springer
147views Education» more  CORR 2006»
13 years 4 months ago
ARQ Diversity in Fading Random Access Channels
A cross-layer optimization approach is adopted for the design of symmetric random access wireless systems. Instead of the traditional collision model, a more realistic physical la...
Young-Han Nam, Praveen Kumar Gopala, Hesham El Gam...
CORR
2007
Springer
126views Education» more  CORR 2007»
13 years 4 months ago
Optimal Throughput-Diversity-Delay Tradeoff in MIMO ARQ Block-Fading Channels
In this paper, we consider an automatic-repeat-request (ARQ) retransmission protocol signaling over a block-fading multiple-input, multiple-output (MIMO) channel. Unlike previous ...
Allen Chuang, Albert Guillen i Fabregas, Lars K. R...
WCNC
2008
IEEE
13 years 11 months ago
Relay-Assisted ARQ in Wireless Ad-Hoc Networks
— In this paper we study a simple protocol utilizing two-hop cooperative diversity augmented with “automatic repeat request” (ARQ) for multi-hop ad-hoc networks. This protoco...
Furuzan Atay Onat, Dan Avidor
ITIIS
2010
138views more  ITIIS 2010»
13 years 3 months ago
Performance Analysis of Large CDMA Random Access Systems with Retransmission Diversity over Fading Channels
The random access systems, with retransmission diversity (RD) employment, over large random spreading code division multiple access (CDMA) channel subject to fading is investigate...
Kai Yu, Yi Sun, Pingzhi Fan, Xianfu Lei, Lei Shu
GLOBECOM
2009
IEEE
13 years 11 months ago
Coding Versus ARQ in Fading Channels: How Reliable Should the PHY Be?
—This paper studies the tradeoff between channel coding and ARQ (automatic repeat request) in Rayleigh blockfading channels. A heavily coded system corresponds to a low transmiss...
Peng Wu, Nihar Jindal