A new and exact analysis of DS-CDMA cellular radio system based on the physical interpretation of nakagami wideband channel
AEU - International Journal of Electronics and Communications, cilt.58, sa.5, ss.330-338, 2004 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 58 Sayı: 5
- Basım Tarihi: 2004
- Doi Numarası: 10.1078/1434-8411-54100252
- Dergi Adı: AEU - International Journal of Electronics and Communications
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.330-338
- Anahtar Kelimeler: Coded-division multiple acces, Maximal ratio combining, Multipath fading, Multiple acces interference, RAKEreceiver
- Boğaziçi Üniversitesi Adresli: Evet
Özet
In this paper we present the performance of two uplink/downlink DS-CDMA receivers in a Nakagami wideband channel. Two detection methods were considered; namely, coherent and differential detection RAKE receivers based on maximal ratio combining technique. We consider a new physical interpretation of the Nakagami channel and the instantaneous power of the multiple access interferers. In comparison with the previous researches in the literature, which are based on Gaussian approximation, this approach results in a more accurate solution for the problem. We analyzed and derived closed form formulae for probability of bit error for DS-CDMA cellular radio system in the Nakagami wide-band channel. We presented a set of numerical results for coherent downlink receivers.