Title :
Data capacity of TDMA/FDMA systems with adaptive modulation
Author :
Fry, Theresa A. ; Lee, C.C. ; Honig, Michael
Author_Institution :
Dept. of Electr. & Comput. Eng., Northwestern Univ., Evanston, IL, USA
Abstract :
We develop an analytical model to analyze the data capacity of a TDMA/FDMA system with adaptive modulation. Our model defines data capacity as the maximum average data throughput per channel, and includes packet retransmissions due to user movement and channel estimation error. We study a TDMA/FDMA system with a simple channel model to evaluate the performance bound on data capacity, and then incorporate retransmissions to determine how they affect data capacity. Our model provides a baseline for the study and analysis of the performance of adaptive modulation TDMA/FDMA systems
Keywords :
adaptive modulation; cellular radio; channel capacity; error statistics; frequency division multiple access; parameter estimation; time division multiple access; BER; TDMA/FDMA systems; adaptive modulation; analytical model; cellular radio; channel estimation error; channel model; data capacity; maximum average data throughput per channel; packet retransmissions; performance analysis; performance bound; user movement; Adaptive systems; Analytical models; Base stations; Communication system traffic control; Data communication; Feedback; Frequency division multiaccess; Performance analysis; Time division multiple access; Wireless networks;
Conference_Titel :
Vehicular Technology Conference, 1998. VTC 98. 48th IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-4320-4
DOI :
10.1109/VETEC.1998.683719
