The trade-off between processing gains of impulse radio systems in the presence of timing jitter

Summary, in English

In time hopping impulse radio, N/sub f/ pulses of duration T/sub c/ are transmitted for each symbol. This gives rise to two types of processing gain: (i) pulse combining gain, which is a factor N/sub f/, and (ii) pulse spreading gain, which is N/sub c/ = T/sub f//T/sub c/, where T/sub f/ is the mean interval between two subsequent pulses. This paper investigates the trade-off between these two types of processing gain with and without random polarity codes in the presence of timing jitter. Approximate expressions for bit error probability are derived for both coded and uncoded systems over additive white Gaussian noise channels and are used as the criterion to choose optimal N/sub f/ and N/sub c/ values. The effects of timing jitter and multiple access interference on the selection of optimal system parameters are explained through theoretical analysis. Simulation studies support the theoretical results.

• Författare: S Gezici; H Kobayashi; H V Poor; Andreas Molisch
• Avdelning/ar: Institutionen för elektro- och informationsteknik
• Publiceringsår: 2004
• Språk: Engelska
• Sidor: 3596-3600
• Publikation/Tidskrift/Serie: 2004 IEEE International Conference on Communications
• Volym: 6
• Länkar: http://dx.doi.org/10.1109/ICC.2004.1313214
• Dokumenttyp: Konferensbidrag
• Ämne: Electrical Engineering, Electronic Engineering, Information Engineering
• Nyckelord: broadband networks; error statistics; radiofrequency interference; random codes; timing jitter; AWGN channels
• Conference name: International Conference on Communications , ICC 2004
• Conference date: 2004-06-20 - 2004-06-24
• Conference place: Paris, France
• Status: Published
• ISBN/ISSN/Övrigt: ISBN: 0-7803-8533-0