Title :
A New Link Maintenance and Compensation Model for Cognitive UWB Radio Systems
Author :
Tian, Jin ; Bi, Guangguo
Author_Institution :
Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing
Abstract :
The paper puts forward a new link maintenance and compensation model for cognitive UWB radio systems. In this model, the link maintenance is combined with change of modulation method. Performance analysis conducted for this model shows that cognitive UWB supports sub-carriers selection model of band with 528 MHz wide, and the probability of primary users appearance affects goodput through channel processes. The retransmission of last data and the change of modulation method enhance the robustness against primary users interference, as primary users appear, and compensate to data corruption due to primary users interference
Keywords :
cognitive radio; modulation; probability; radio links; ultra wideband communication; 528 MHz; cognitive UWB radio system; compensation model; link maintenance model; modulation method; performance analysis; probability; subcarrier selection model; Bismuth; Cognitive radio; Interference; Mobile communication; OFDM; Payloads; Performance analysis; Physical layer; Radio spectrum management; Robustness;
Conference_Titel :
ITS Telecommunications Proceedings, 2006 6th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
0-7803-9587-5
Electronic_ISBN :
0-7803-9587-5
DOI :
10.1109/ITST.2006.288867
