Title :
Doubly Differential Communication Assisted with Cooperative Relay
Author :
Yi, Na ; Ma, Yi ; Tafazolli, Rahim
Author_Institution :
Centre for Commun. Syst. Res., Surrey Univ., Guildford
Abstract :
Doubly differential modem turns out to be a promising technology for coping with unknown frequency offsets with the pay of signal-to-noise ratio (SNR). In this paper, we propose to compensate the SNR loss by employing the detection-forward cooperative relay. The receiver can employ two kind of combiners to attain the achievable spatial diversity-gain. Performance analysis is carefully investigated for the Rayleigh-fading channel. It is shown that the SNR-compensation is satisfied for the large-SNR range.
Keywords :
Rayleigh channels; diversity reception; modems; Rayleigh-fading channel; detection-forward cooperative relay; doubly differential modem communication; performance analysis; spatial diversity-gain; Digital communication; Digital relays; Doppler shift; Frequency; Modems; Oscillators; Performance analysis; Rayleigh channels; Signal to noise ratio; System performance;
Conference_Titel :
Vehicular Technology Conference, 2008. VTC Spring 2008. IEEE
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-1644-8
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2008.143
