Optimizing time and power allocation for four-node wireless broadcasting channel with relay

Sunyoung Lee, Seong Lyun Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this paper, we investigate the optimal power and time allocation for a wireless relay network, called BCFR (Broadcasting Channel with Fixed Relay), where the relay node is limited by the half-duplex operation. Introducing a relay in two-node broadcasting channel for a node which has a link of bad quality or requires higher transmission rate enlarges the rate region with well-designed power and time allocation. Also, BCFR is a common component of many relay networks, in which either orthogonal or non-orthogonal transmission can be adopted at the information source node. In particular, for the non-orthogonal transmission, the layered transmission with superposition coding is applied at the source node. By deriving the optimal power and time-fraction allocation at each node of BCFR, we show that the non-orthogonal structure enhances the capacity region and achieves higher log-sum capacity than the orthogonal transmission.

Original languageEnglish
Title of host publication2010 IEEE 72nd Vehicular Technology Conference Fall, VTC2010-Fall - Proceedings
DOIs
Publication statusPublished - 2010 Dec 1
Event2010 IEEE 72nd Vehicular Technology Conference Fall, VTC2010-Fall - Ottawa, ON, Canada
Duration: 2010 Sep 62010 Sep 9

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Other

Other2010 IEEE 72nd Vehicular Technology Conference Fall, VTC2010-Fall
CountryCanada
CityOttawa, ON
Period10/9/610/9/9

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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  • Cite this

    Lee, S., & Kim, S. L. (2010). Optimizing time and power allocation for four-node wireless broadcasting channel with relay. In 2010 IEEE 72nd Vehicular Technology Conference Fall, VTC2010-Fall - Proceedings [5594239] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VETECF.2010.5594239