Title :
A decoupled cross-layer design for symbiotic cognitive relaying with time incentive
Author :
Thumar, Vinay ; Nadkar, Taskeen ; Desai, U.B. ; Merchant, S.N.
Author_Institution :
Indian Inst. of Technol. Bombay, Mumbai, India
Abstract :
The rationale of this work is that the incumbent primary user (PU) of a cognitive radio (CR) system relays its traffic through the secondary user (SU) network for an enhanced throughput. In return, it rewards the SUs with an incentive time during which they can use the complete licensed bandwidth to transmit their own data, without the need for spectrum sensing. With the objective of maximizing the time incentive, we develop a MAC layer resource allocation strategy and a corresponding routing technique. A low-complexity decoupled cross-layer design is proposed to make the symbiotic relaying scheme practically workable. Simulation results are provided, which are indicative of the effectiveness of the proposed design.
Keywords :
cognitive radio; resource allocation; telecommunication network routing; telecommunication traffic; MAC layer resource allocation strategy; cognitive radio system; decoupled cross-layer design; low-complexity decoupled cross-layer design; routing technique; secondary user network; spectrum sensing; symbiotic cognitive relaying; time incentive; Measurement; OFDM; Radio spectrum management; Relays; Resource management; Routing; Throughput; Cognitive Radio; Cross-layer design; OFDM; Relay;
Conference_Titel :
Wireless and Optical Communications Conference (WOCC), 2011 20th Annual
Conference_Location :
Newark, NJ
Print_ISBN :
978-1-4577-0453-6
DOI :
10.1109/WOCC.2011.5872299