Finite-SNR diversity-multiplexing trade-off of inter-vehicular cooperative diversity protocols

The finite-signal-to-noise ratio (SNR) diversity-multiplexing trade-off (DMT) of cooperative diversity protocols are investigated in vehicular networks based on cascaded Rayleigh fading. Lower bounds of DMT at finite SNR for orthogonal and non-orthogonal protocols are derived. The results showcase t...

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Veröffentlicht in:	Electronics letters 2014-07, Vol.50 (16), p.1169-1171
Hauptverfasser:	Perera, P, Jayalath, A.D.S
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences cascaded Rayleigh fading cooperative communication DMT Exact sciences and technology Fading finite‐signal‐to‐noise ratio finite‐SNR diversity‐multiplexing tradeoff Gain Ground, air and sea transportation, marine construction intervehicular cooperative diversity protocols Lower bounds Mathematical analysis multiplexing Networks nonorthogonal protocols orthogonal protocols protocols Radiocommunications Road transportation and traffic Showcases Telecommunications Telecommunications and information theory Tradeoffs vehicular ad hoc networks vehicular networks volatile vehicular environments Wireless communications
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Beschreibung
Zusammenfassung:	The finite-signal-to-noise ratio (SNR) diversity-multiplexing trade-off (DMT) of cooperative diversity protocols are investigated in vehicular networks based on cascaded Rayleigh fading. Lower bounds of DMT at finite SNR for orthogonal and non-orthogonal protocols are derived. The results showcase the first look into the achievable DMT trade-off of cooperative diversity in volatile vehicular environments. It is shown that the diversity gains are significantly suboptimal at realistic SNRs.
ISSN:	0013-5194 1350-911X 1350-911X
DOI:	10.1049/el.2014.1830