Title :
Using grey prediction theory to reduce handoff overhead in cellular communication systems
Author :
Sheu, Shim-Tsong ; Wu, Chih-Chiang
Author_Institution :
Dept. of Electr. Eng., Tamkang Univ., Tamsui, Taiwan
Abstract :
A novel handoff algorithm based on grey theory is being proposed for reducing the handoff overhead in cellular communication environment. The design of the methods is intended to be used under a log-normal fading environment. The grey prediction model is used to predict the received signal strength indicator (RSSI) values from two base stations (BS). The decision whether performing handoff is based on the predictive RSSI value, the received RSSI value and n-1 past RSSI values. By changing the handoff probability of two regions (divided by the middle point of two separated BSs), the position of first handoff to be executed will close to the middle point of two separated BSs. The simulation results show that the proposed algorithm with grey theory obtains excellent performance because it not only minimizes the number of performing handoff, but also has a very short calculating time
Keywords :
cellular radio; fading channels; log normal distribution; personal communication networks; prediction theory; PCS; RSSI value; base stations; cellular communication systems; grey prediction theory; handoff algorithm; handoff overhead reduction; handoff probability; log-normal fading environment; performance; personal communication services; received signal strength indicator; short calculating time; simulation results; Base stations; Bit error rate; Cellular networks; Communication systems; Design methodology; Fading; Hysteresis; Personal communication networks; Prediction theory; Wireless communication;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-6463-5
DOI :
10.1109/PIMRC.2000.881529
