Sciweavers

112 search results - page 10 / 23
» Adaptive Bandwidth Allocation Scheme for Cognitive Radios
Sort
View
TCOM
2010
119views more  TCOM 2010»
15 years 2 months ago
Optimization of OFDMA-Based Cellular Cognitive Radio Networks
Abstract— In this paper, we study the coexistence and optimization of a multicell cognitive radio network (CRN) which is overlaid with a multicell primary radio network (PRN). We...
Yao Ma, Dong In Kim, Zhiqiang Wu
JSAC
2011
127views more  JSAC 2011»
14 years 10 months ago
Opportunistic Multiple Access for Cognitive Radio Networks
—In this paper, opportunistic multiple access to the under-utilized channel resources is investigated. Exploiting source burstiness, secondary cognitive nodes utilizes primary no...
Amr A. El-Sherif, Ahmed K. Sadek, K. J. Ray Liu
MUE
2008
IEEE
83views Multimedia» more  MUE 2008»
15 years 10 months ago
Using Adaptive Bandwidth Allocation Approach to Defend DDoS Attacks
Denial of service attacks occur when the attacks are from a single host, whereas distributed denial of service attacks occur when multiple affected systems flood the bandwidth or ...
Chu-Hsing Lin, Jung-Chun Liu, Hsun-Chi Huang, Tsun...
SECON
2010
IEEE
15 years 1 months ago
Distributed Routing, Relay Selection, and Spectrum Allocation in Cognitive and Cooperative Ad Hoc Networks
Throughput maximization is a key challenge in cognitive radio ad hoc networks, where the availability of local spectrum resources may change from time to time and hopby-hop. To ach...
Lei Ding, Tommaso Melodia, Stella N. Batalama, Joh...
INFOCOM
2012
IEEE
13 years 6 months ago
Combinatorial auction with time-frequency flexibility in cognitive radio networks
—In this paper, we tackle the spectrum allocation problem in cognitive radio (CR) networks with time-frequency flexibility consideration using combinatorial auction. Different f...
Mo Dong, Gaofei Sun, Xinbing Wang, Qian Zhang