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CISS
2008
IEEE
13 years 11 months ago
Random access over multiple access channels: A queuing perspective
—This paper investigates a slotted random access system where packet capture is modeled using communication theoretic techniques. It is shown that the optimum rates and attempt p...
Shreeshankar Bodas, Sriram Vishwanath, Vijay Subra...
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
INFOCOM
2010
IEEE
13 years 3 months ago
Delay Analysis for Cognitive Radio Networks with Random Access: A Fluid Queue View
Abstract—We consider a cognitive radio network where multiple secondary users (SUs) contend for spectrum usage, using random access, over available primary user (PU) channels. Ou...
Shanshan Wang, Junshan Zhang, Lang Tong
GLOBECOM
2008
IEEE
13 years 11 months ago
Distributed Multi-Interface Multi-Channel Random Access
— The aggregate capacity of wireless ad-hoc networks can be substantially increased if each wireless node is equipped with multiple network interface cards (NICs) and each NIC op...
Amir Hamed Mohsenian Rad, Vincent W. S. Wong
ICC
2009
IEEE
198views Communications» more  ICC 2009»
13 years 11 months ago
On the Capacity Region of the Gaussian Multiple Access Channel with Noisy Feedback
—We provide a new outer bound on the capacity region of the two-user Gaussian multiple access channel (MAC) with AWGN-corrupted feedback. Our outer bound is based on the idea of ...
Ravi Tandon, Sennur Ulukus