Completion Delay of Random Linear Network Coding in Full-Duplex Relay Networks

As the next-generation wireless networks thrive, full-duplex and relay techniques are combined to improve the network performance. Random linear network coding (RLNC) is another popular technique to enhance the efficiency and reliability of wireless communications. In this paper, in order to explore...

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Vydáno v:IEEE transactions on communications Ročník 70; číslo 12; s. 1
Hlavní autoři: Su, Rina, Sun, Qifu Tyler, Zhang, Zhongshan, Li, Zongpeng
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York IEEE 01.12.2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
Coding
completion delay
Delay
Delays
Full-duplex
Full-duplex system
Lower bounds
Network coding
random linear network coding (RLNC)
Receivers
Relay networks
Relay networks (telecommunication)
relaying
Scheduling
Service introduction
Throughput
Upper bounds
Wireless communications
Wireless networks
ISSN:0090-6778, 1558-0857
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Shrnutí:As the next-generation wireless networks thrive, full-duplex and relay techniques are combined to improve the network performance. Random linear network coding (RLNC) is another popular technique to enhance the efficiency and reliability of wireless communications. In this paper, in order to explore the potential of RLNC in full-duplex relay networks, we investigate two fundamental perfect RLNC schemes and theoretically analyze their completion delay performance. The first scheme is a straightforward application of conventional perfect RLNC studied in wireless broadcast, so it involves no additional process at the relay. Its performance serves as an upper bound for all perfect RLNC schemes. The other scheme allows sufficiently large buffer and unconstrained linear coding at the relay. It attains the optimal performance and serves as a lower bound for all RLNC schemes. For both schemes, closed-form formulae to characterize the expected completion delay at a single receiver as well as for the whole system are derived. Numerical results are also demonstrated to validate the theoretical characterizations, and compare the two fundamental schemes with the existing one.
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ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2022.3220867