Title :
Capacity and Power-Bandwidth Efficiency of Wireless Adaptive Feedback Communication Systems
Author :
Platonov, Anatoliy
Author_Institution :
Inst. of Electron. Syst., Warsaw Univ. of Technol., Warsaw, Poland
fDate :
5/1/2012 12:00:00 AM
Abstract :
In this study, the bit-rate and power-bandwidth (P-B) efficiency of wireless adaptive feedback communication systems (AFCS) are considered. The analysis is based on the results of AFCS optimization [1], [2]. It is shown that the capacity of optimal AFCS is equal to that of the forward channel in the initial n* cycles of the samples transmission, and decreases for n>;n*. Transmission in the "threshold" number of cycles n* provides "ideal" P-B trade-off and full utilization of the resources of the system.
Keywords :
adaptive modulation; bandwidth allocation; optimisation; AFCS optimization; bit-rate efficiency; power-bandwidth efficiency; wireless adaptive feedback communication systems; Adaptive systems; Frequency control; Modulation; Noise; Optimization; Transmitters; Wireless communication; Adaptive modulation; analog transmission; capacity; feedback systems; power-bandwidth efficiency;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2012.031912.112225
