Cooperative Diversity: A Review
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 6
Abstract
In recent times, because of factors such as signal multi path-propagation and fading the wireless transmissions are sev erely degraded. So in order to avoid such problems in ad-hoc network, cellular network, or WSNs, the concept of cooperative div ersity can be used. Cooperative diversity uses a multiple antenna environment for improving or maximizing total network channe l capacities for any given set of bandwidths which exploits user diversity by decoding the combined signal of the relayed signal a nd the direct signal in wireless multi-hop networks. There are several relaying strategies to implement cooperative diversity, and some of the basic strategies are Amplify-and-Forwa rd and Decode-and-Forward and Compress- and Forward. Each of them have their own advantage and they can provide differe nt performance results with different environment.
Authors and Affiliations
Nagendra Sah, Navroop Sandhu
Keywords
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