Title :
Accurate computations of cell coverage areas for CDMA hard and soft handoffs
Author :
Chang, Yu- Wen ; Geraniotis, Evaggelos
Author_Institution :
Inst. for Syst. Res., Maryland Univ., College Park, MD, USA
Abstract :
Outage probabilities for CDMA hard and soft handoffs are derived to compare their cell coverage areas. Rayleigh fading and log-normal shadowing are included in the propagation model. Signal-to-interference-plus-noise ratio is used to compute the outage probabilities for any mobile location distributions. In the soft handoff system, mobiles choose the base station with the least attenuation among nearest neighbors. Coverage areas for reverse and forward links and different diversity combining techniques are considered
Keywords :
Rayleigh channels; cellular radio; code division multiple access; diversity reception; land mobile radio; log normal distribution; radiofrequency interference; Rayleigh fading; attenuation; cell coverage areas; diversity combining; forward links; hard handoffs; log-normal shadowing; mobile location distributions; outage probabilities; propagation model; reverse links; signal-to-interference-plus-noise ratio; soft handoffs; Attenuation; Base stations; Computer networks; Distributed computing; Diversity reception; Interference; Multiaccess communication; Propagation losses; Rayleigh channels; Shadow mapping;
Conference_Titel :
Vehicular Technology Conference, 1996. Mobile Technology for the Human Race., IEEE 46th
Print_ISBN :
0-7803-3157-5
DOI :
10.1109/VETEC.1996.503480
