Wireless transmissions with combined gain relays over fading channels

Theodoros A. Tsiftsis, George K. Karagiannidis, Stavros A. Kotsopoulos

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Citations (Scopus)

Abstract

We present a dual-hop relayed wireless communication system where the gain of the relay, called combined gain relay (CGR), is produced after combining the channel state information from both hops, depending on the mean hop's signal-to-noise ratio (SNR). The proposed scheme can be efficiently applied in dual-hop transmissions with unbalanced mean SNRs due to the long-term fading effects produced by the movement of the user in the area served by the wireless network. The overall system performance is studied in Rayleigh fading channels. Closed-form expressions are derived for important system performance metrics, such as average end-to-end SNR, average error probability and outage probability. Furthermore, we investigate the CGR's average power consumption which in certain cases is lower compared to existed relays. Numerical results and simulations show an improvement in the end-to-end system performance.

Original languageEnglish
Title of host publicationIFIP International Federation for Information Processing
Pages1-10
Number of pages10
Volume197
DOIs
Publication statusPublished - 2006
Externally publishedYes

Publication series

NameIFIP International Federation for Information Processing
Volume197
ISSN (Print)15715736

Fingerprint

Fading
Communication systems
Performance metrics
Wireless networks
Wireless communication
Simulation

Keywords

  • Average bit error probability (ABEP)
  • Combined gain relay (CGR)
  • Dual-hop transmissions
  • Outage probability
  • Rayleigh fading

ASJC Scopus subject areas

  • Information Systems and Management

Cite this

Tsiftsis, T. A., Karagiannidis, G. K., & Kotsopoulos, S. A. (2006). Wireless transmissions with combined gain relays over fading channels. In IFIP International Federation for Information Processing (Vol. 197, pp. 1-10). (IFIP International Federation for Information Processing; Vol. 197). https://doi.org/10.1007/0-387-31173-4_1

Wireless transmissions with combined gain relays over fading channels. / Tsiftsis, Theodoros A.; Karagiannidis, George K.; Kotsopoulos, Stavros A.

IFIP International Federation for Information Processing. Vol. 197 2006. p. 1-10 (IFIP International Federation for Information Processing; Vol. 197).

Research output: Chapter in Book/Report/Conference proceedingChapter

Tsiftsis, TA, Karagiannidis, GK & Kotsopoulos, SA 2006, Wireless transmissions with combined gain relays over fading channels. in IFIP International Federation for Information Processing. vol. 197, IFIP International Federation for Information Processing, vol. 197, pp. 1-10. https://doi.org/10.1007/0-387-31173-4_1
Tsiftsis TA, Karagiannidis GK, Kotsopoulos SA. Wireless transmissions with combined gain relays over fading channels. In IFIP International Federation for Information Processing. Vol. 197. 2006. p. 1-10. (IFIP International Federation for Information Processing). https://doi.org/10.1007/0-387-31173-4_1
Tsiftsis, Theodoros A. ; Karagiannidis, George K. ; Kotsopoulos, Stavros A. / Wireless transmissions with combined gain relays over fading channels. IFIP International Federation for Information Processing. Vol. 197 2006. pp. 1-10 (IFIP International Federation for Information Processing).
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