Title :
Performance analysis of dynamic packet assignment in OFDMA based cellular systems
Author :
Jayaparvathy, R. ; Anand, Sruthy ; Srikanth, S.
Author_Institution :
AU-KBC Res. Center, Chennai, India
Abstract :
We present a performance analysis of OFDMA based cellular systems with dynamic packet assignment (DPA). Most approaches in the current literature to analyze wireless data networks do not take into account the interference conditions on the radio channel. We propose an analytical model based on a two-dimensional continuous time Markov chain (CTMC), that takes into account, the interference conditions on the OFDMA sub-carriers. We derive expressions for the mean delay and the average system throughput on the downlink in OFDMA based cellular systems with data-only traffic.
Keywords :
Markov processes; OFDM modulation; cellular radio; data communication; delays; packet radio networks; radio links; radiofrequency interference; telecommunication channels; telecommunication traffic; OFDMA based cellular system; data-only traffic; dynamic packet assignment; orthogonal frequency division multiple access; radio channel; two-dimensional continuous time Markov chain; wireless data network; Analytical models; Bit rate; Data analysis; Delay effects; Downlink; Interference; Performance analysis; Software performance; Throughput; Traffic control;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. 15th IEEE International Symposium on
Print_ISBN :
0-7803-8523-3
DOI :
10.1109/PIMRC.2004.1368744
