Closely spaced multipath channel estimation in CDMA networks using divided difference filter

Zahid Ali; Mohamed A. Deriche; M. Adnan Landolsi

doi:10.1007/978-3-642-10844-0_75

Closely spaced multipath channel estimation in CDMA networks using divided difference filter

Zahid Ali^*
, Mohamed A. Deriche
, M. Adnan Landolsi

^*Corresponding author for this work

Department of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We investigate time delay and channel gain estimation for multipath fading code division multiple access (CDMA) signals using the second order divided difference filter (DDF). We consider the case of paths that are a fraction of chip apart, also knwon as closely spaced paths. Given the nonlinear dependency of the channel parameters on the received signals in multiuser/multipath scenarios, we show that the DDF achieves better performance than its linear counterparts. The DDF, which is a derivative-free Kalman filtering approach, avoids the errors associated with linearization in the conventional extended Kalman filter (EKF). The numerical results also show that the proposed DDF is simpler to implement, and more resilient to near-far interference in CDMA networks and is able to track closly spaced paths.

Original language	English
Title of host publication	Communication and Networking
Subtitle of host publication	International Conference, FGCN/ACN 2009, Held as Part of the Future Generation Information Technology Conference, FGIT 2009, Jeju Island, Korea, December 10-12, 2009. Pro
Editors	Dominik Slezak, Tai-hoon Kim, Alan Chin-Chen Chang, Thanos Vasilakos, MingChu Li, Kouichi Sakurai
Pages	634-644
Number of pages	11
DOIs	https://doi.org/10.1007/978-3-642-10844-0_75
State	Published - 2009

Publication series

Name	Communications in Computer and Information Science
Volume	56
ISSN (Print)	1865-0929

Keywords

CDMA Channel Estimation
Closely spaced multipaths
Kalman filters
Multiple access Interference
Non-linear filtering

ASJC Scopus subject areas

General Computer Science
General Mathematics

Access to Document

10.1007/978-3-642-10844-0_75

Cite this

Ali, Z., Deriche, M. A., & Landolsi, M. A. (2009). Closely spaced multipath channel estimation in CDMA networks using divided difference filter. In D. Slezak, T. Kim, A. C.-C. Chang, T. Vasilakos, M. Li, & K. Sakurai (Eds.), Communication and Networking: International Conference, FGCN/ACN 2009, Held as Part of the Future Generation Information Technology Conference, FGIT 2009, Jeju Island, Korea, December 10-12, 2009. Pro (pp. 634-644). (Communications in Computer and Information Science; Vol. 56). https://doi.org/10.1007/978-3-642-10844-0_75

Ali, Zahid ; Deriche, Mohamed A. ; Landolsi, M. Adnan. / Closely spaced multipath channel estimation in CDMA networks using divided difference filter. Communication and Networking: International Conference, FGCN/ACN 2009, Held as Part of the Future Generation Information Technology Conference, FGIT 2009, Jeju Island, Korea, December 10-12, 2009. Pro. editor / Dominik Slezak ; Tai-hoon Kim ; Alan Chin-Chen Chang ; Thanos Vasilakos ; MingChu Li ; Kouichi Sakurai. 2009. pp. 634-644 (Communications in Computer and Information Science).

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title = "Closely spaced multipath channel estimation in CDMA networks using divided difference filter",

abstract = "We investigate time delay and channel gain estimation for multipath fading code division multiple access (CDMA) signals using the second order divided difference filter (DDF). We consider the case of paths that are a fraction of chip apart, also knwon as closely spaced paths. Given the nonlinear dependency of the channel parameters on the received signals in multiuser/multipath scenarios, we show that the DDF achieves better performance than its linear counterparts. The DDF, which is a derivative-free Kalman filtering approach, avoids the errors associated with linearization in the conventional extended Kalman filter (EKF). The numerical results also show that the proposed DDF is simpler to implement, and more resilient to near-far interference in CDMA networks and is able to track closly spaced paths.",

keywords = "CDMA Channel Estimation, Closely spaced multipaths, Kalman filters, Multiple access Interference, Non-linear filtering",

author = "Zahid Ali and Deriche, \{Mohamed A.\} and Landolsi, \{M. Adnan\}",

year = "2009",

doi = "10.1007/978-3-642-10844-0\_75",

language = "English",

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editor = "Dominik Slezak and Tai-hoon Kim and Chang, \{Alan Chin-Chen\} and Thanos Vasilakos and MingChu Li and Kouichi Sakurai",

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Ali, Z, Deriche, MA & Landolsi, MA 2009, Closely spaced multipath channel estimation in CDMA networks using divided difference filter. in D Slezak, T Kim, AC-C Chang, T Vasilakos, M Li & K Sakurai (eds), Communication and Networking: International Conference, FGCN/ACN 2009, Held as Part of the Future Generation Information Technology Conference, FGIT 2009, Jeju Island, Korea, December 10-12, 2009. Pro. Communications in Computer and Information Science, vol. 56, pp. 634-644. https://doi.org/10.1007/978-3-642-10844-0_75

Closely spaced multipath channel estimation in CDMA networks using divided difference filter. / Ali, Zahid; Deriche, Mohamed A.; Landolsi, M. Adnan.
Communication and Networking: International Conference, FGCN/ACN 2009, Held as Part of the Future Generation Information Technology Conference, FGIT 2009, Jeju Island, Korea, December 10-12, 2009. Pro. ed. / Dominik Slezak; Tai-hoon Kim; Alan Chin-Chen Chang; Thanos Vasilakos; MingChu Li; Kouichi Sakurai. 2009. p. 634-644 (Communications in Computer and Information Science; Vol. 56).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Closely spaced multipath channel estimation in CDMA networks using divided difference filter

AU - Ali, Zahid

AU - Deriche, Mohamed A.

AU - Landolsi, M. Adnan

PY - 2009

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N2 - We investigate time delay and channel gain estimation for multipath fading code division multiple access (CDMA) signals using the second order divided difference filter (DDF). We consider the case of paths that are a fraction of chip apart, also knwon as closely spaced paths. Given the nonlinear dependency of the channel parameters on the received signals in multiuser/multipath scenarios, we show that the DDF achieves better performance than its linear counterparts. The DDF, which is a derivative-free Kalman filtering approach, avoids the errors associated with linearization in the conventional extended Kalman filter (EKF). The numerical results also show that the proposed DDF is simpler to implement, and more resilient to near-far interference in CDMA networks and is able to track closly spaced paths.

AB - We investigate time delay and channel gain estimation for multipath fading code division multiple access (CDMA) signals using the second order divided difference filter (DDF). We consider the case of paths that are a fraction of chip apart, also knwon as closely spaced paths. Given the nonlinear dependency of the channel parameters on the received signals in multiuser/multipath scenarios, we show that the DDF achieves better performance than its linear counterparts. The DDF, which is a derivative-free Kalman filtering approach, avoids the errors associated with linearization in the conventional extended Kalman filter (EKF). The numerical results also show that the proposed DDF is simpler to implement, and more resilient to near-far interference in CDMA networks and is able to track closly spaced paths.

KW - CDMA Channel Estimation

KW - Closely spaced multipaths

KW - Kalman filters

KW - Multiple access Interference

KW - Non-linear filtering

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U2 - 10.1007/978-3-642-10844-0_75

DO - 10.1007/978-3-642-10844-0_75

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AN - SCOPUS:73349118420

SN - 9783642108433

T3 - Communications in Computer and Information Science

SP - 634

EP - 644

BT - Communication and Networking

A2 - Slezak, Dominik

A2 - Kim, Tai-hoon

A2 - Chang, Alan Chin-Chen

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A2 - Li, MingChu

A2 - Sakurai, Kouichi

ER -

Ali Z, Deriche MA, Landolsi MA. Closely spaced multipath channel estimation in CDMA networks using divided difference filter. In Slezak D, Kim T, Chang ACC, Vasilakos T, Li M, Sakurai K, editors, Communication and Networking: International Conference, FGCN/ACN 2009, Held as Part of the Future Generation Information Technology Conference, FGIT 2009, Jeju Island, Korea, December 10-12, 2009. Pro. 2009. p. 634-644. (Communications in Computer and Information Science). doi: 10.1007/978-3-642-10844-0_75

Closely spaced multipath channel estimation in CDMA networks using divided difference filter

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