Title :
Collision avoidance scheme for MB-OFDM using Adaptive Symbol Skipping
Author :
Shiozaki, Ryosuke ; Sanada, Yukitoshi
Author_Institution :
Dept. of Electron. & Electr. Eng., Keio Univ., Yokohama, Japan
Abstract :
In this paper for MB-OFDM piconets the probabilities of symbol collision and symbol skipping are theoretically analyzed in the case that both the desired and interfering piconets employ adaptive symbol skipping (ASS). In this scheme energy detection is employed and symbol transmission is skipped in order to avoid collision. Thermal noise is taken into account for analysis of the probabilities are calculated based on chi-square distribution. The assumed ASS shows better performance than the scheme in which only the desired piconet employs the ASS.
Keywords :
OFDM modulation; probability; telecommunication congestion control; ultra wideband communication; MB-OFDM piconets; adaptive symbol skipping; chi-square distribution; collision avoidance scheme; energy detection; multiband orthogonal frequency division multiplexing; symbol collision probability; symbol transmission; thermal noise; Collision avoidance; Interference; OFDM; Performance analysis; Performance loss; Personal area networks; Probability; Radio transmitters; Signal detection; Time division multiple access;
Conference_Titel :
Ultra-Wideband, 2009. ICUWB 2009. IEEE International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-2930-1
Electronic_ISBN :
978-1-4244-2931-8
DOI :
10.1109/ICUWB.2009.5288730
