Performance and parameter optimization of UWB RAKE reception with interchip interference

Jian Zhang; Rodney A. Kennedy; Thushara D. Abhayapala

Performance and parameter optimization of UWB RAKE reception with interchip interference

Jian Zhang^*, Rodney A. Kennedy, Thushara D. Abhayapala

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

Abstract

In this paper, performance and parameter optimization of RAKE reception for time-hopping Ultra Wideband (TH-UWB) systems is investigated when interchip interference (ICI) is taken into consideration. For a TH-UWB system, ICI is closely related to the relationship between the number of chips in a frame (N_c), and the period of the TH code (N_f). In a fixed data-rate case, larger N_f implies higher transmitted symbol signal-to-noise ratio (SNR) and larger ICI in RAKE fingers. So there is a tradeoff between N_c and N_f to optimize the RAKE performance. In this paper, two models are suggested to describe the ICI, and this tradeoff is investigated in the single user case based on the traditional Gaussian approximation method and other flexible methods. Given the lack of explicit knowledge of the relationship among N_f, N_c and the interference, a rule of thumb is proposed to configure N_f and N_c.

Original language	English
Article number	WC32-4
Pages (from-to)	2830-2834
Number of pages	5
Journal	Conference Record - International Conference on Communications
Volume	4
Publication status	Published - 2005
Event	2005 IEEE International Conference on Communications, ICC 2005 - Seoul, Korea, Republic of Duration: 16 May 2005 → 20 May 2005

Cite this

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title = "Performance and parameter optimization of UWB RAKE reception with interchip interference",

abstract = "In this paper, performance and parameter optimization of RAKE reception for time-hopping Ultra Wideband (TH-UWB) systems is investigated when interchip interference (ICI) is taken into consideration. For a TH-UWB system, ICI is closely related to the relationship between the number of chips in a frame (Nc), and the period of the TH code (Nf). In a fixed data-rate case, larger Nf implies higher transmitted symbol signal-to-noise ratio (SNR) and larger ICI in RAKE fingers. So there is a tradeoff between Nc and Nf to optimize the RAKE performance. In this paper, two models are suggested to describe the ICI, and this tradeoff is investigated in the single user case based on the traditional Gaussian approximation method and other flexible methods. Given the lack of explicit knowledge of the relationship among Nf, Nc and the interference, a rule of thumb is proposed to configure Nf and Nc.",

keywords = "Interchip interference, RAKE receiver, Ultra Wideband",

author = "Jian Zhang and Kennedy, {Rodney A.} and Abhayapala, {Thushara D.}",

year = "2005",

language = "English",

volume = "4",

pages = "2830--2834",

journal = "Conference Record - International Conference on Communications",

issn = "0536-1486",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

note = "2005 IEEE International Conference on Communications, ICC 2005 ; Conference date: 16-05-2005 Through 20-05-2005",

}

TY - JOUR

T1 - Performance and parameter optimization of UWB RAKE reception with interchip interference

AU - Zhang, Jian

AU - Kennedy, Rodney A.

AU - Abhayapala, Thushara D.

PY - 2005

Y1 - 2005

N2 - In this paper, performance and parameter optimization of RAKE reception for time-hopping Ultra Wideband (TH-UWB) systems is investigated when interchip interference (ICI) is taken into consideration. For a TH-UWB system, ICI is closely related to the relationship between the number of chips in a frame (Nc), and the period of the TH code (Nf). In a fixed data-rate case, larger Nf implies higher transmitted symbol signal-to-noise ratio (SNR) and larger ICI in RAKE fingers. So there is a tradeoff between Nc and Nf to optimize the RAKE performance. In this paper, two models are suggested to describe the ICI, and this tradeoff is investigated in the single user case based on the traditional Gaussian approximation method and other flexible methods. Given the lack of explicit knowledge of the relationship among Nf, Nc and the interference, a rule of thumb is proposed to configure Nf and Nc.

AB - In this paper, performance and parameter optimization of RAKE reception for time-hopping Ultra Wideband (TH-UWB) systems is investigated when interchip interference (ICI) is taken into consideration. For a TH-UWB system, ICI is closely related to the relationship between the number of chips in a frame (Nc), and the period of the TH code (Nf). In a fixed data-rate case, larger Nf implies higher transmitted symbol signal-to-noise ratio (SNR) and larger ICI in RAKE fingers. So there is a tradeoff between Nc and Nf to optimize the RAKE performance. In this paper, two models are suggested to describe the ICI, and this tradeoff is investigated in the single user case based on the traditional Gaussian approximation method and other flexible methods. Given the lack of explicit knowledge of the relationship among Nf, Nc and the interference, a rule of thumb is proposed to configure Nf and Nc.

KW - Interchip interference

KW - RAKE receiver

KW - Ultra Wideband

UR - http://www.scopus.com/inward/record.url?scp=24144458551&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:24144458551

SN - 0536-1486

VL - 4

SP - 2830

EP - 2834

JO - Conference Record - International Conference on Communications

JF - Conference Record - International Conference on Communications

M1 - WC32-4

T2 - 2005 IEEE International Conference on Communications, ICC 2005

Y2 - 16 May 2005 through 20 May 2005

ER -

Performance and parameter optimization of UWB RAKE reception with interchip interference

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