Application and Research of Routing Protocol Based on AODV in Cognitive Radio

Abstract

With the rapid development of science and technology, the current spectrum resources can not simply cope with the high-load wireless networks transmission. In addition, because the use of spectrum resources can not be fully maximize the overload load phenomenon, which leads to the waste of resources and loss of the spectrum, the existing overall spectrum resources are not adequate utilization and its utilization can not be improved. Obviously, in order to meet the growing demand for Internet and wireless communications, we must address the low rate of utilization of spectrum resources To this end, it is proposed to use the spectrum resources in cognitive radio drainage techniques, cognitive radio node to perceive the change of radio spectrum resources, and thus connected in the most appropriate timing and spectral integration, the effect of radio data transmission, and adequately addressed the problem of the spectrum resource low utilization. This thesis is based on the in-depth analysis of cognitive radio technology to understand the routing protocol in wireless cross-layer data transmission, and then discuss the relevant characteristics of the AODV routing protocol, and base on the AODV, the routing protocol uses in the analysis of the radio network organization based on the proposed to the possibility of cognitive radio.

A Cross-Layer-Based Routing Protocol for Ad Hoc Cognitive Radio Networks

“…Most routing protocols in the literature are an extension of multichannel routing protocols for ad hoc networks with the spectrum availability parameter. Nevertheless, there are several prospects, reviews, and position papers in the literature [4][5][6][7]. Cesana et al [5] discussed the challenges and solutions in routing for cognitive radio networks.…”

“…Although many authors have not mentioned that their routing protocol is a cross-layer protocol [2][3][4][5], network layer receives information of available common channel from the MAC layer. Cacciapuoti et al [2] proposed two versions of cognitive ad hoc on-demand distance vector (CAODV) protocols, which are an extension of AODV [9].…”