Title :
Performance Analysis of Distributed CDD MC-CDMA Sensor Networks with Frequency-Correlated Subcarriers over Nakagami-m Fading Channels
Author :
Guerrero, L. ; Said, F. ; Lodhi, A. ; Aghvami, A.H.
Author_Institution :
Centre for Telecommun. Res., King´´s Coll. London, London
Abstract :
Sensor networks as cooperative spatial diversity (CSD) is implemented and analyzed for cyclic delay diversity (CDD) distributed MC-CDMA system. In such as cooperative system, it is proposed a distributed SISO analysis employing CDD to simplify the system evaluation in terms of probability of errors and maximum achievable throughput [bits/s/Hz]. Furthermore, the moment generating function (MGF) of the correlated Nakagami-m random variable is used and considered for the realistic case of frequency-correlated MC-CDMA subcarries. To this end, an explicit allocation strategy for the distributed diversity is deducted. Simulation results are also presented which show excellent agreement with the analytical framework.
Keywords :
Nakagami channels; block codes; channel coding; code division multiple access; correlation methods; cyclic codes; error statistics; random processes; space-time codes; wireless sensor networks; Nakagami-m fading channel; cooperative spatial diversity; correlated Nakagami-m random variable; distributed SISO analysis; distributed cyclic delay diversity MC-CDMA sensor network; error probability; frequency-correlated MC-CDMA subcarrier; moment generating function; performance analysis; space-time block code; symbol error rate; throughput maximization; Fading; Frequency; MIMO; Multicarrier code division multiple access; Performance analysis; Random variables; Receiving antennas; Relays; Throughput; Wireless sensor networks;
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.2008.29
