Effects of PRF and Slot Interval on the Data Throughput of PPM-Based Ultra Wide-Band Systems in Multi-path Channels

  • Sungbin Im
  • Taehyung Park
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3981)


In this paper, we investigate the effect of pulse repetition frequency (PRF) and slot interval on the throughput performance of the ultra wide band (UWB) wireless communication system in multi-path channels, and based on these observations, a data throughput control using PRF and slot interval is proposed for maximizing the effective throughput. Recently, due to many desirable features of the UWB system, it has drawn much attention especially for short-range high-speed data transmission. The UWB system has two parameters to determine its data throughput; pulse repetition frequency and slot interval. In the multi-path channel with additive white Gaussian noise, the UWB system suffers from the inter-pulse interference (IPI) and noise, which result in degradation of system performance. In order to maintain or improve the system performance, the UWB system can vary the two parameters. In this paper, we demonstrate the effects of the two parameters on the data throughput of the UWB system in various multi-path indoor channels through computer simulation, and show that the variable data rate approach designed based on the observations is superior to the fixed data rate one in terms of effective throughput performance.


Pulse Repetition Frequency Delay Spread Ultra Wide Band Additive White Gaussian Noise Channel Pulse Position Modulation 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Sungbin Im
    • 1
  • Taehyung Park
    • 2
  1. 1.School of Electrical EngineeringSoongsil UniversitySeoulKorea
  2. 2.Department of Industrial and Information Systems EngineeringSoongsil UniversitySeoulKorea

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