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ICASSP
2009
IEEE
14 years 2 months ago
Beacon-assisted spectrum access with cooperative cognitive transmitter and receiver
—Spectrum access is an important function of cognitive radios for detecting and utilizing spectrum holes without harming the legacy systems. In this paper, we propose novel coope...
Ali Tajer, Xiaodong Wang
MOBICOM
2010
ACM
13 years 7 months ago
Sybot: an adaptive and mobile spectrum survey system for wifi networks
Information on site-specific spectrum characteristics is essential to evaluate and improve the performance of wireless networks. However, it is usually very costly to obtain accur...
Kyu-Han Kim, Alexander W. Min, Kang G. Shin
TPDS
2008
169views more  TPDS 2008»
13 years 7 months ago
Dynamic Resource Management in Energy Constrained Heterogeneous Computing Systems Using Voltage Scaling
An ad hoc grid is a wireless heterogeneous computing environment without a fixed infrastructure. This study considers wireless devices that have different capabilities, have limite...
Jong-Kook Kim, Howard Jay Siegel, Anthony A. Macie...
ICC
2007
IEEE
116views Communications» more  ICC 2007»
14 years 1 months ago
A New Cross Layer Approach to QoS-Aware Proportional Fairness Packet Scheduling in the Downlink of OFDM Wireless Systems
—OFDM systems are the major cellular platforms for supporting ubiquitous high performance mobile applications. However, there remain a number of research challenges to be tackled...
Zhen Kong, Jiangzhou Wang, Yu-Kwong Kwok
ICC
2008
IEEE
236views Communications» more  ICC 2008»
14 years 2 months ago
Carrier Sensing Based Multiple Access Protocols for Cognitive Radio Networks
—Cognitive radio (CR) dynamically accessing inactive radio spectrum of the primary system (PS) at link level has attracted a lot of research interests. The cognitive radio networ...
Shao-Yu Lien, Chih-Cheng Tseng, Kwang-Cheng Chen