Title :
A micro-cellular CDMA system over slow and fast Rician fading radio channels with forward error correcting coding and diversity
Author :
Wijffels, Caspar A F J ; Misser, Howard Sewberath ; Prasad, Ramjee
fDate :
11/1/1993 12:00:00 AM
Abstract :
The microcellular radio environment is characterized by a Rician fading channel. The use of a slotted code division multiple access (CDMA) scheme is considered in single- and multi-microcell systems. The throughput and delay performance of a slotted CDMA network are analyzed for slow and fast Rician fading radio channels using differential phase shift keying (DPSK) modulation. The application of selection diversity (SD) and maximal ratio combining (MRC) improve the performance for both slow and fast fading. It is also shown that the use of forward error correcting (FEC) codes enhances the system performance. Computational results are presented for maximum rms delay spread in the order of 2 μs and data rates of 32 and 64 kbit/s. A comparative analysis of macro-, micro- and pico-cellular CDMA systems is also presented
Keywords :
BCH codes; cellular radio; code division multiple access; delays; diversity reception; encoding; error correction codes; fading; packet radio networks; phase shift keying; telecommunication channels; 32 kbit/s; 64 kbit/s; DPSK modulation; FEC code; delay; differential phase shift keying; fast Rician fading radio channels; forward error correcting coding; macrocellular CDMA systems; maximal ratio combining; microcellular CDMA system; microcellular radio; multimicrocell systems; performance; picocellular CDMA systems; selection diversity; single-microcell systems; slotted code division multiple access; slow Rician fading radio channels; throughput; Differential phase shift keying; Differential quadrature phase shift keying; Diversity reception; Error correction codes; Fading; Multiaccess communication; Performance analysis; Phase modulation; Rician channels; Throughput;
Journal_Title :
Vehicular Technology, IEEE Transactions on
