DocumentCode :
155788
Title :
Performance of transmitter preprocessing aided cooperative downlink MC-DS-CDMA system
Author :
Haribhaskaran, Alagu Sanjana ; Sridharan, Bhanusri ; Ravi, Adit ; Nagaradjane, Prabagarane
Author_Institution :
Dept. of ECE, SSN Instn., Chennai, India
fYear :
2014
fDate :
1-3 Sept. 2014
Firstpage :
495
Lastpage :
500
Abstract :
In this article, we revisit the performance of a downlink (DL) multi-carrier direct-sequence code-division multiple-access (MC-DS-CDMA) system when the destination mobile stations (DMSs) are aided by a group of relay stations for achieving the relay diversity. In our work, transmitter preprocessing is invoked at the base-station (BS) as well as at the relay stations to suppress the DL multi-user interference (MUI) and the inter-relay interference (IRI) at the relays and the DMSs, respectively. In particular, we investigate the achievable bit error rate (BER) performance of the relay aided MC-DS-CDMA downlink communication with transmitter preprocessing. Our study shows that the transmitter preprocessing efficiently mitigates the MUI at the relays and IRI at the DMSs, thereby significantly contributing to achieve the relay diversity. Further, the preprocessing approach results in low-complexity signal processing at the relay stations in the context of signal detection.
Keywords :
adjacent channel interference; code division multiple access; cooperative communication; error statistics; relay networks (telecommunication); signal detection; spread spectrum communication; BER; DL multi-user interference; DMS; IRI; MUI; base-station; bit error rate; cooperative downlink MC-DS-CDMA system; destination mobile stations; interrelay interference; multicarrier direct sequence code division multiple access; relay diversity; relay stations; signal detection; transmitter preprocessing; Conferences; Context; Interference; Relays; Transmitters; Ultra wideband technology; Vectors; MC-DS-CDMA transmitter preprocessing; multi user interference; relay diversity;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Ultra-WideBand (ICUWB), 2014 IEEE International Conference on
Conference_Location :
Paris
Type :
conf
DOI :
10.1109/ICUWB.2014.6959032
Filename :
6959032
Link To Document :
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