Paper Info
Title
Power And Bandwidth Efficient Modulation And Coding For Small Satellite Communication Terminals
Abstract
The objective of this project is to maximise the power and bandwidth efficiency of small satellite earth communication terminals whose main limitation to satellite capacity is a non linear transmitting power amplifier. A form of envelope equalisation is presented in which regular QPSK modulation is used together with instantaneous data magnitude modulation so as to produce a near constant envelope signal when filtered with root 35% raised cosine filtering. The algorithm for deriving the magnitude values Is presented along with results using a data look-up table approximation. Bit error rate figures are presented for envelope equalisation combined with a (4096,3249) binary product code and MAP decoding. It Is shown that at 10(-6) BER the Eb/No is 3.52 dB some 0.26 dB from the linear system. When used with a non linear power amplifier the benefit of envelope equalisation is approximately 3 dB. The power spectrum is identical to that of the linear system with no spectral spreading and no increase in adjacent channel interference.
Year
DOI
Venue
2002
10.1109/ICC.2002.997379
2002 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5, CONFERENCE PROCEEDINGS
Keywords
Field
DocType
bandwidth,lookup table,artificial satellites,bandwidth efficiency,amplitude modulation,power amplifier,filtering,phase distortion,amplitude distortion,binary codes,linear systems,linear system,satellite communication,bit error rate,nonlinear distortion,ber,power spectrum,product code,radio transmitters,power efficiency,adjacent channel interference
Raised-cosine filter,Computer science,Adjacent-channel interference,Modulation,Electronic engineering,Amplitude modulation,Spectral efficiency,Communications satellite,Amplifier,Bit error rate
Conference
Citations 
PageRank 
References 
8
1.40
1
Authors
3
Name
Order
Citations
PageRank
Martin Tomlinson110619.89
A. Ambroze27013.00
Graham Wade381.40