A joint PHY/MAC cross-layer design for UWB under power control

Authors:
Rashid A. Saeed;Sabira Khatun;Borhanuddin Mohd Ali;Khazani Abdullah
Affiliations:
Telekom Malaysia R&D Sdn. Bhd., Lingkaran Teknokrat Timur, 63000 Cyberjaya, Selangor D.E., Malaysia;Department of Computer and Communications Systems Engineering, Engineering Faculty, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia;Department of Computer and Communications Systems Engineering, Engineering Faculty, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia;Department of Computer and Communications Systems Engineering, Engineering Faculty, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
Venue:
Computers and Electrical Engineering
Year:
2010

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Abstract

Power control (PC) is a critical parameter for the design and evaluation of UWB-based WPAN networks due to its distributed control nature and non-fixed topology. The main issues in UWB PC are the channel gain fluctuations induced by indoor channel fluctuation and interference arising from narrowband systems. In this paper we introduce a joint PHY/MAC technique for DS-UWB power control design by exploiting the high time resolution of the UWB signal for channel gain improvement and mitigate the narrowband interference to reduce transmitted power. The results indicate that the proposed approach achieves better BER and throughput over previous works.