Energy Efficient Multicast Communication in Cognitive Radio Wireless Mesh Network

Abstract

Multicasting is a basic networking primitive used in a wide variety of applications that is also true for cognitive radio-based networks. Although cognitive radio technology is considered to be the most promising technology to deal with spectrum scarcity, it relates to completely different aspects of networking and presents new challenges. For cognitive radio-based multicast sessions, it is important to use the spectrum efficiently by reducing the number of channels used as well as engaging fewer nodes in data relaying. This will benefit the network in three ways. First, it will decrease the number of transmissions. Second, it will help to reduce energy usage. Third, it will spare more channels and relay nodes for simultaneous multicast sessions. To achieve these advantages, efficient channel selection and relay nodes are required based on hop-to-hop communication. In this paper an algorithm has been developed that attempts to minimize energy consumption by selecting the minimum possible number of relay nodes and channels for a multicast session, taking into account the sporadic availability of the spectrum. The proposed method performs effectively compared to the flooding method in terms of energy consumption for the provided examples in multicasting.

Inference and performance aware multi-channel scheduling and routing scheme with call admission control in wireless mesh networks

“…Further in all the above models, no paper has addressed the multi-path retransmission issue. Due to this, in [7], they have proposed an algorithm that has been designed that takes into account the inconsistent availability of spectrum for the selection of the channels and relay nodes necessary for a multicast session. The goal of this method is to reduce the amount of energy that is being consumed while still meeting the requirement of the multicast.…”

Design and Analysis of Energy-efficient Algorithm for Wireless Networks

“…Avallone et al [10] suggests a technique based on MP-CARA (minimal power channel assignment and routing), which maximizes channel use while using the least amount of power. For the energy-efficient network, a formulation is proposed to optimize channel allocation in cognitive radio mesh networks (CRMN) [11]. Baidas et al [12] studies the difficulty of steady association of the clients and channel allocation in multi-cell (NOMA) networks to maintain the quality of service (QoS) and interference between the users.…”