Title :
Cognitive routing for multi-hop mobile cognitive radio ad hoc networks
Author :
Jae-Joon Lee ; Jaesung Lim
Author_Institution :
Ajou Univ., Suwon, South Korea
Abstract :
Mobility can lead to continual loss of data and service interruptions during communications in multi-hop cognitive radio networks. Mobility of primary users (PUs) or cognitive users (CUs) requires adjustment of multi-hop communications among CUs to avoid any interference to PUs. To provide durable and reliable data routing that ensures continuous network service, we propose mobility-aware cognitive routing (MCR) for multi-hop cognitive radio networks. MCR examines the risk level of each node against interference regions and selects the most reliable path for data delivery using a Markov predictor. Through simulation, we verify that the proposed scheme can avoid route destruction preemptively and achieve reliable data delivery.
Keywords :
Markov processes; cognitive radio; mobile ad hoc networks; mobility management (mobile radio); radiofrequency interference; telecommunication network reliability; telecommunication network routing; Markov predictor; cognitive user mobility; continual data loss; continuous network service; data delivery reliability; data routing durability; data routing reliability; interference avoidance; mobility-aware cognitive routing; multihop communication adjustment; multihop mobile cognitive radio ad hoc networks; primary user mobility; route destruction avoidance; service interruptions; Cognitive radio; Interference (signal); Markov processes; Mobile communication; Routing; Routing protocols; Cognitive radio networks; mobility; routing;
Journal_Title :
Communications and Networks, Journal of
DOI :
10.1109/JCN.2014.000026
