Title :
Spectral efficiency of joint multiple cell-site processors for randomly spread DS-CDMA systems
Author :
Somekh, Oren ; Zaidel, Benjamin M. ; Shamai, Shlomo
Author_Institution :
Dept. of Electr. Eng., Technion-Israel Inst. of Technol., Haifa, Israel
fDate :
27 June-2 July 2004
Abstract :
We consider a chip-interleaved randomly spread DS-CDMA scheme employed in Wyner´s infinite linear cell-array model with flat fading. Focusing on the asymptotic setup, the per-cell spectral efficiencies of the optimum and linear MMSE joint multicell receivers are considered. Performance enhancement as compared to single-cell-site processing is demonstrated. The asymptotic behavior of the two receivers in extreme SNR regimes and in a high cell-load setup is analyzed as well. The impact of chip interleaving vs. symbol interleaving is also considered.
Keywords :
cellular radio; code division multiple access; fading channels; least mean squares methods; radio receivers; spread spectrum communication; Wyners infinite linear cell-array model; chip-interleaving; direct sequence code division multiple access; flat fading; linear MMSE joint multicell receiver; random spread DS-CDMA scheme; Electronic mail; Fading; H infinity control; Interference; Multiaccess communication; Performance analysis; Performance gain; Rayleigh channels; Signal processing; System performance;
Conference_Titel :
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Print_ISBN :
0-7803-8280-3
DOI :
10.1109/ISIT.2004.1365319
