Abstract
Time-hopping ultra-wideband technology presents some very attractive features for future indoor wireless systems in terms of achievable transmission rate and multiple access capabilities. This paper develops an algorithm to design time-hopping system simulators specially suitable for ultra-wideband, which takes advantage of some of the specific characteristics of this kind of systems. The algorithm allows an improvement of both the time capabilities and the achievable sampling rate and can be used to research into the influence of different parameters on the performance of the system. An additional result is the validation of a new geeral performance formula for time-hopping ultra-wideband systems with multipath channels.
Highlights
Multiple access (MA) systems based on time-hopping spread-spectrum (TH-SS) techniques have recently started to be taken into consideration as a possible solution for the implementation of the future short-range personal communication systems (PCSs) or wireless personal area networks (WPANs) [1]
After the Federal Communications Commission (FCC) ruling in February 2003, the development of UWB technology has been accelerated by the entry of new enterprises and research centers that are providing new approaches to solve some of the main problems of UWB systems
In [15], an alternative intrabit coding based on superorthogonal codes is described that allows the improvement of the bit error probability (BEP) or the increase of the number of links by a factor that is logarithmic with the number of pulses Ns
Summary
Time-hopping ultra-wideband technology presents some very attractive features for future indoor wireless systems in terms of achievable transmission rate and multiple access capabilities. This paper develops an algorithm to design time-hopping system simulators specially suitable for ultra-wideband, which takes advantage of some of the specific characteristics of this kind of systems. The algorithm allows an improvement of both the time capabilities and the achievable sampling rate and can be used to research into the influence of different parameters on the performance of the system. An additional result is the validation of a new general performance formula for time-hopping ultra-wideband systems with multipath channels. Keywords and phrases: ultra-wideband, time hopping, WPAN, spread spectrum, multipath channel, simulation
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