DocumentCode :
433638
Title :
Relaxed bandwidth sharing with space division multiplexing™
Author :
Guruprasad, V.
Author_Institution :
Inspired Res., New York, NY, USA
Volume :
2
fYear :
2005
fDate :
13-17 March 2005
Firstpage :
1114
Abstract :
The phases of adjacent frequencies in a wavepacket evolve along its electromagnetic path at rates proportional to their wavelengths, so that the spectral phase gradient is proportional to the distance τ from the source. Scanning of this phase gradient at a controlled rate β at a receiver converts it to a frequency shift δω proportional to ωβr, enabling r to be determined without use of time or phase reference. This enables us to introduce source distance as the basic dimension, instead of carrier frequency and spread spectrum encoding, for separation of signals from multiple sources. The entire bandwidth above a minimum wavelength that depends on the spacing between transmitters can be used by each transmitter for dedicated communication with the given receiver. Preliminary results using DSP implementation, and limits of the technique are discussed.
Keywords :
bandwidth allocation; radio receivers; radio transmitters; source separation; space division multiplexing; DSP implementation; multiple sources; receiver; relaxed bandwidth sharing; signal separation; source distance; space division multiplexing; spectral phase gradient; transmitter; Bandwidth; Digital signal processing; Frequency conversion; Integral equations; Multiaccess communication; Optical receivers; Optical transmitters; Radio transmitters; Space technology; Spread spectrum communication;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications and Networking Conference, 2005 IEEE
ISSN :
1525-3511
Print_ISBN :
0-7803-8966-2
Type :
conf
DOI :
10.1109/WCNC.2005.1424665
Filename :
1424665
Link To Document :
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