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Performance analysis and optimization of relay-assisted vehicle-to-vehicle (V2V) cooperative communication

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3 Author(s)
Haci Ilhan ; Elektrik - Elektronik Fakültesi, Elektronik ve Haberle¿me Mühendisli¿i, ¿stanbul Teknik Üniversitesi, 34469 Maslak, Turkey ; Ibrahim Altunbas ; Murat Uysal

In this paper, we investigate performance of cooperative diversity techniques for inter-vehicular communication. The channel model used in this system is cascaded Rayleigh which provides a realistic description of inter-vehicular channel where two or more independent Rayleigh processes are assumed to be generated by independent groups of scatterers around the two mobile terminals. In this paper, we investigate the performance of amplify-and-forward relaying for an inter-vehicular cooperative scheme assisted by a road-side access point which acts as a relay. Our diversity analysis shows that the cooperative scheme is able to extract the full distributed spatial diversity. We further formulate a power allocation problem for the considered scheme to optimize the power allocated to considered system. Performance gains up to nearly 3 dB are observed through optimum power allocation depending on the relay location.

Published in:

2008 IEEE 16th Signal Processing, Communication and Applications Conference

Date of Conference:

20-22 April 2008