A Survey on Cooperative Diversity and Its Applications in Various Wireless Networks

TL;DR

This survey reviews various cooperative diversity schemes, their applications in wireless networks, and their impact on energy efficiency, network lifetime, and resource allocation, highlighting recent developments and challenges.

Contribution

It provides a comprehensive overview of cooperative diversity techniques, their applications, and discusses recent advancements in resource management for wireless systems.

Findings

Cooperative diversity improves energy efficiency in sensor networks.

Cooperation enhances spectrum utilization in cognitive radio.

Effective user scheduling boosts network performance.

Abstract

Cooperative diversity is a technique in which various radio terminals relay signals for each other. Cooperative diversity results when cooperative communications is used primarily to leverage the spatial diversity available among distributed radios. In this paper different cooperative diversity schemes and their applications in various wireless networks are discussed. In this paper the impact of cooperative diversity on the energy consumption and lifetime of sensor network and the impact of cooperation in cognitive radio are discussed. Here, user scheduling and radio resource allocation techniques are also discussed which are developed in order to efficiently integrate various cooperative diversity schemes for the emerging IEEE 802.16j based systems.