DocumentCode :
1312092
Title :
UltraWide Band Cognitive Pulse Shaping under Physical-Layer QoS Constraints
Author :
Biagi, Mauro ; Polli, Valentina
Author_Institution :
Dept. of Inf., Electr. & Telecommun. Eng. (DIET), Univ. of Rome, Rome, Italy
Volume :
59
Issue :
11
fYear :
2011
fDate :
11/1/2011 12:00:00 AM
Firstpage :
3167
Lastpage :
3176
Abstract :
Ultra Wide Band (UWB) communication systems operate in the frequency range between 0 and 10.6 GHz so they induce the Scientific Community to solve the problem of coexistence with concurrent telecommunication services. This is the leading reason why both the Federal Communications Commission (FCC) and the European Telecommunications Standards Institute (ETSI) gave strict indications about the spectral limits to be respected and require the transmitter and receiver to be compliant with these spectral masks. To this end, it is mandatory to carefully shape the UWB pulse, for this can be accurately designed so as to avoid severe performance reduction while guarding inter-systems coexistence. The UWB technology and, more, the pulse shaping allow to apply the cognitive paradigm where the transmitter and receiver are the actors of this functionality since the performance are tied to channel features and interference presence. The widespread choice of Gaussian-like pulses has proven, however, largely suboptimal from a power emission point of view since they fail to optimize performance. Goal of this contribution is to show how to achieve a good compromise between spectral emission, rate and synchronization errors robustness, via a modified version of the Parks-McClellan method, considering channel impairments due to its frequency-selective nature and to the inter-pulse interference.
Keywords :
cognitive radio; multipath channels; quality of service; radio receivers; radio transmitters; radiofrequency interference; ultra wideband communication; Gaussian-like pulses; Parks-McClellan method; frequency 0 GHz to 10.6 GHz; interference presence; interpulse interference; intersystems coexistence; performance reduction; quality of service; spectral emission; spectral limits; spectral masks; synchronization errors; ultra wideband cognitive pulse shaping; FCC; Interference; Pulse shaping methods; Receivers; Signal to noise ratio; Synchronization; IR-UWB; Parks-McClellan algorithm; cognitive; interference; multipath faded channels; spectral masks; synchronization;
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/TCOMM.2011.082011.090643
Filename :
6007021
Link To Document :
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