Title :
On the capacity of packet reservation multiple access with capture in personal communication systems
Author :
Qiu, Xiaoxin ; Li, Victor O K
Author_Institution :
Commun. Sci. Inst., Univ. of Southern California, Los Angeles, CA, USA
fDate :
11/1/1996 12:00:00 AM
Abstract :
A new Markovian model is developed to analyze the packet reservation multiple access (PRMA) protocol over Rician fading channels with lognormal shadowing. The packet dropping probability and the voice user capacity are defined as the performance measures. A new formula is derived to evaluate the dropping probability in the fading environment. The analytical results from our new formula show close agreement with those from computer simulations. The capture effect on the PRMA system performance is also studied. We found that, with capture, the user capacity will be improved and the service quality will degrade gracefully when the number of active users in the system increases. Using the dropping probability as the criterion, we also determine the optimal permission probability in a microcellular environment
Keywords :
Markov processes; Rician channels; cellular radio; channel capacity; fading; packet radio networks; packet reservation multiple access; personal communication networks; probability; voice communication; Markovian model; PRMA protocol; PRMA system performance; Rician fading channels; capture effect; computer simulations; fading environment; lognormal shadowing; microcellular environment; optimal permission probability; packet dropping probability; packet reservation multiple access; performance measures; personal communication systems; service quality; voice user capacity; Access protocols; Capacity planning; Computer simulation; Error analysis; Fading; Performance analysis; Personal communication networks; Rician channels; Shadow mapping; System performance;
Journal_Title :
Vehicular Technology, IEEE Transactions on
