Analytical Enhancement of Rayleigh K-Factor for Indoor Transmitted Reference Wireless Receiver

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Year:
2017
Type of Publication:
Article
Keywords:
Rayliegh K-factor, Transmitted Reference Receiver, UWB Small Antenna, Probability of Bit Error, Indoor Channel Impulse Response
Authors:
  • Rashid Ali Fayadh
Journal:
IJISM
Volume:
5
Number:
4
Pages:
128-133
Month:
July
ISSN:
2347-9051
Abstract:
The first part of this research focuses on designing of microstrip ultra-wideband (UWB) printed antenna. The design is presented to cover the "UWB frequency range (3.1-10.6 GHz)" and operates as a filter for pulses carried by spread spectrum along 7.5 GHz. As there are many challenges toward the development of wireless systems and one of these challenges is the system size. Spanner-shaped patch antenna was designed to transmit or receive the pulses over this frequency band. The small and high gain antenna of 30 mm x 28 mm dimensions was simulated by using CST EM simulation tool. This tool is utilized to get very accurate simulated results for return loss (S11) and omni-directional radiation patterns to be suitable many around users. The second part of this work is to implement structure for transmitted reference (TR) receiver operating in UWB technology. This receiver was presented to reduce the complexity of rake receiver structure and to decrease the effect of indoor or outdoor noises. Moreover modern era of communication wireless systems is generally designed to adapt transmission parameters dynamically. Such adaptations are done based on estimation of channel statistics and the measure of Rayliegh K-factor is one of such statistics. This factor is playing a vital role influencing the bit error rate (BER) and spectral efficiency through "line-of-sight (LOS) and non-line-of-sight (NLOS)" wireless propagation. The second part of this work focuses on analytical computation of Rayliegh K-factor of multi-clustered propagation channel models including antenna gain patterns. From simulation results, channel capacity and BER are affected by the SNR links due to variation of Rayliegh K-factor
Full text: IJISM_663_FINAL.pdf

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