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INFOCOM
2008
IEEE
14 years 4 months ago
Competitive Analysis of Opportunistic Spectrum Access Strategies
—We consider opportunistic spectrum access (OSA) strategies for a transmitter in a multichannel wireless system, where a channel may or may not be available and the transmitter m...
Nicholas B. Chang, Mingyan Liu
GLOBECOM
2007
IEEE
14 years 4 months ago
Gaussian Approximations for Carrier Sense Modeling in Wireless Ad Hoc Networks
— Physical carrier sense for wireless multihop networks has attracted a certain degree of attention since it is a simple yet important mechanism for distributed channel access. S...
Francesco Rossetto, Michele Zorzi
TIT
2002
65views more  TIT 2002»
13 years 9 months ago
Existence and construction of noncoherent unitary space-time codes
We consider transmission using transmit and reception using receive antennas in a wireless environment assuming that neither the transmitter nor the receiver knows the channel coef...
Vahid Tarokh, Il-Min Kim
WOWMOM
2006
ACM
130views Multimedia» more  WOWMOM 2006»
14 years 3 months ago
Power Control in Multihop CSMA
—This paper aims at improving the power efficiency of the CSMA/CA protocol for transmission of multimedia information over multihop wireless channels. Using a distance dependent ...
Bo Yan, Hamid Gharavi
INFOCOM
2008
IEEE
14 years 4 months ago
Exploiting Multi-Channel Diversity in Spectrum-Agile Networks
—Recently, spectrum-agile (SA) networks have been recognized as a viable solution to the spectrum-scarcity problem in wireless communications. In SA networks, secondary (unlicens...
Alexander W. Min, Kang G. Shin