Publication: Decode-and-Forward Relaying Protocol with Optimal Degrees of Freedom for Proactively Selective Wireless Relay Networks
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Issued Date
2019
Resource Type
File Type
application/pdf
Other identifier(s)
2-s2.0-85093685381
Rights Holder(s)
Scopus
Bibliographic Citation
RI2C 2019 - 2019 Research, Invention, and Innovation Congress. (2019)
Suggested Citation
Woradit K. Decode-and-Forward Relaying Protocol with Optimal Degrees of Freedom for Proactively Selective Wireless Relay Networks. RI2C 2019 - 2019 Research, Invention, and Innovation Congress. (2019). doi:10.1109/RI2C48728.2019.8999878 Retrieved from: https://hdl.handle.net/20.500.14740/5033
Author(s)
Abstract
This paper proposes a new decode-and-forward relaying protocol for wireless relay networks with relay selection to maximize the end-to-end instantaneous capacity. The main idea is to optimize the degrees of freedom, which may be time, frequency, or both time and frequency, and are unoptimized in the conventional decode-and-forward relaying protocol. Without loss of generality, we focus on optimizing the time of relaying phases, namely, the source-to-relay phase, and the relay-to-destination phase. We proved that the proposed protocol always yield greater end-to-end instantaneous capacity than or equal to that of the conventional protocol, and also proved that the proposed protocol sometimes select the relay node, different from the relay node selected by the conventional protocol. The conventional and the proposed protocols are compared in terms of ergodic capacity and outage probability by computer simulations. The comparisons show that the proposed relaying protocol performs better than the conventional relaying protocol in all signal-to-noise ratio regimes. © 2019 IEEE.
Subject(s)
Decoding
Degrees of freedom (mechanics)
Mobile telecommunication systems
Patents and inventions
Relay control systems
Signal to noise ratio
Conventional relaying
Decode-and-forward relaying
Ergodic capacity
Outage probability
Relay selection
Relaying protocols
Time and frequencies
Wireless relay networks
Internet protocols
Degrees of freedom (mechanics)
Mobile telecommunication systems
Patents and inventions
Relay control systems
Signal to noise ratio
Conventional relaying
Decode-and-forward relaying
Ergodic capacity
Outage probability
Relay selection
Relaying protocols
Time and frequencies
Wireless relay networks
Internet protocols