Analysis of Efficient Cognitive Radio MAC Protocol for Ad Hoc Networks

Abstract

Cognitive Radio (CR) is an emerging technology to exploit the existing spectrum dynamically. It can intelligently access the vacant spectrum frequency bands. Although a number of methodologies have been suggested for improving the performance of CR networks, little attention has been given to efficient usage, management and energy efficiency. In this paper, a modern paradigm pertaining to the spectrum allotment and usage, manifested as CR, has been introduced as a potential solution to this problem, where the CR (unlicensed) users can opportunistically deploy the available free licensed spectrum bands in such a way that restricts the degree of interference to the extent that the primary (licensed) users can allow. In this article, we analysis and compare various protocols, in addition, we evaluate CREAM MAC, RMC MAC, SWITCH MAC, EECR MAC protocols related to the CR MAC in term of different parameters such as throughput, data transmission and time efficiency. We conclude the most efficient protocol, which have similar features named as Proposed Efficient Cognitive Radio MAC (PECR-MAC) protocol.

Optimizing Multichannel Path Scheduling in Cognitive Radio Ad Hoc Networks using Differential Evolution

“…"Efficient Management and Exploitation of Spectrum Frequency Bands" by Yaseer et al [3] offers an evaluation of different CR Medium Access Control (MAC) protocols, notably putting forward the PECR-MAC protocol as the most efficient one. However, the research could be improved by considering the effects of interference and mobility on the performance of CR networks, which is absent in this paper.…”