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ITIIS
2010
79views more  ITIIS 2010»
13 years 6 months ago
HMM-based Adaptive Frequency-Hopping Cognitive Radio System to Reduce Interference Time and to Improve Throughput
Cognitive Radio is an advanced enabling technology for the efficient utilization of vacant spectrum due to its ability to sense the spectrum environment. It is important to determ...
Sung Hwan Shon, Sung Jeen Jang, Jae Moung Kim
TMC
2011
137views more  TMC 2011»
13 years 2 months ago
Cognitive Medium Access: Exploration, Exploitation, and Competition
— This paper establishes the equivalence between cognitive medium access and the competitive multi-armed bandit problem. First, the scenario in which a single cognitive user wish...
Lifeng Lai, Hesham El Gamal, Hai Jiang, H. Vincent...
JDCTA
2010
125views more  JDCTA 2010»
13 years 2 months ago
Reliable Information Transmission: A Chaotic Sequence-Based Authentication Scheme for Radio Environment Maps Enabled Cognitive R
With the intent of efficient occupying under-utilized spectrum, radio environment map (REM) based cognitive radio (CR) networking is proposed to facilitate the distributed spectru...
Li Zhang, Guoxin Zheng
ICASSP
2011
IEEE
12 years 11 months ago
Source localization using time difference of arrival within a sparse representation framework
The problem addressed is source localization via time-differenceof-arrival estimation in a multipath channel. Solving this localization problem typically implies cross-correlating...
Ciprian R. Comsa, Alexander M. Haimovich, Stuart C...
CORR
2012
Springer
198views Education» more  CORR 2012»
12 years 3 months ago
Token-DCF: An Opportunistic MAC protocol for Wireless Networks
—IEEE 802.11 DCF is the MAC protocol currently used in wireless LANs. 802.11 DCF is inefficient due to two types of overhead; channel idle time and collision time. This paper pr...
Ghazale Hosseinabadi, Nitin H. Vaidya