DocumentCode :
2938744
Title :
An Adaptive Transmission Scheme for Cognitive Radio Systems Based on Interference Temperature Model
Author :
Minki Hong ; Jaewoon Kim ; Hyunwook Kim ; Yoan Shin
Author_Institution :
Soongsil Univ., Seoul
fYear :
2008
fDate :
10-12 Jan. 2008
Firstpage :
69
Lastpage :
73
Abstract :
We present an adaptive transmission scheme for the CR (cognitive radio) systems. The proposed scheme estimates the distance between a CR user and an incumbent user utilizing IT (interference temperature) information recognized through the spectrum sensing procedure. Then, the CR user determines the maximum transmission power which does not cause any interference to the incumbent user by using CR-APC (CR-adaptive power control). At the same time, in order to provide the maximum throughput to the CR user, the proposed scheme adaptively selects the modulation order considering the determined transmission power and the IT value by applying CR-AMC (CR-adaptive modulation and coding) in the given channel state. Hence, wireless communication equipments using the proposed scheme are able to adaptively transmit the data without interference on the incumbent users in various channel environments.
Keywords :
adaptive codes; adaptive control; adaptive modulation; cognitive radio; power control; radiofrequency interference; telecommunication control; adaptive modulation and coding; adaptive power control; adaptive transmission scheme; channel environments; channel state; cognitive radio systems; interference temperature model; transmission power; wireless communication equipments; Chromium; Cognitive radio; Interference; Modulation coding; Power control; Quality of service; Temperature sensors; Throughput; Wireless communication; Wireless sensor networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Consumer Communications and Networking Conference, 2008. CCNC 2008. 5th IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-1456-7
Electronic_ISBN :
978-1-4244-1457-4
Type :
conf
DOI :
10.1109/ccnc08.2007.22
Filename :
4446320
Link To Document :
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