Title :
Improved assessment of the spectrum efficiency of SDMA systems
Author :
Au, W.S. ; Lea, C.-T. ; Murch, R.D.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, Hong Kong
Abstract :
We present an assessment of the spectral efficiency of spatial division multiple access systems. Our analysis attempts to incorporate the effects of co-channel interference (CCI) for users sharing the same channel within a cell (intra-cell interference) as well as the CCI from other cells (inter-cell interference). To determine the outage probability we utilize exact results for combined Rayleigh and log-normal shadowing in conjunction with a generic antenna pattern. Results are provided for the outage probability and spectral efficiency for various traffic loads and reuse distances
Keywords :
Rayleigh channels; antenna radiation patterns; cellular radio; cochannel interference; log normal distribution; space division multiple access; spectral analysis; CCI; Rayleigh shadowing; SDMA systems; antenna pattern; base station handover; channel sharing; co-channel interference; inter-cell interference; intra-cell interference; log-normal shadowing; outage probability; reuse distances; side lobe levels; spatial division multiple access; spectrum efficiency; traffic loads; Adaptive arrays; Antennas and propagation; Brain modeling; Gold; Interchannel interference; Multiaccess communication; Power system modeling; Propagation losses; Radiofrequency interference; Shadow mapping;
Conference_Titel :
Vehicular Technology Conference, 1998. VTC 98. 48th IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-4320-4
DOI :
10.1109/VETEC.1998.686106
