Opportunities for Adaptivity in the UMTS Terminal Receiver: The Path-Search Function

J. Potman, Marijn Damstra, F.W. Hoeksema, Cornelis H. Slump

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

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Abstract

Wireless communication systems will have to become more and more exible. In the Adaptive Wireless Networking project we try to develop such a exible wireless communication system by developing algorithms for adaptive implementation of the digital signal processing functions in wireless communication systems. Within the limits of a wireless communication system standard there are two kinds of adaptivity: algorithm-selection adaptivity and algorithm-parameter adaptivity. In this paper we focus on algorithm-selection adaptivity in the UMTS path search function. Therefore we describe two path search algorithms: a Power Delay Prole (PDP) based algorithm and a Maximum Likelihood Estimate (MLE) based algorithm. We study and compare the performance of these algorithms under a number of multipath channel conditions by means of simulations. The MLE based algorithm is able to resolve a larger number of paths, especially when the paths are closely spaced, at the cost of an increased computational complexity. Therefore, using algorithm-selection adaptivity in the UMTS path search function seems to be useful. The MLE based algorithm is used when there are strong closely spaced path and the PDP based algorithm is used in all other conditions, appears to be useful. However, in order to be conclusive a few points will still have to be studied.
Original languageUndefined
Title of host publicationProceedings of the STW program: ProRISC
Place of PublicationVeldhoven, The Netherlands
PublisherSTW/NWO/Dutch Ministry of Economic Affairs
Pages294-300
Number of pages7
ISBN (Print)90-73461-43-X
Publication statusPublished - 25 Nov 2004
Event15th Annual Workshop on Circuits, Systems and Signal Processing, ProRisc 2004 - Veldhoven, Netherlands
Duration: 25 Nov 200426 Nov 2004
Conference number: 15

Publication series

Name
PublisherSTW/NWO/Dutch Ministry of Economic Affairs

Conference

Conference15th Annual Workshop on Circuits, Systems and Signal Processing, ProRisc 2004
Abbreviated titleProRisc
CountryNetherlands
CityVeldhoven
Period25/11/0426/11/04

Keywords

  • adaptive signal processing
  • IR-48116
  • METIS-219311
  • path search
  • UMTS

Cite this

Potman, J., Damstra, M., Hoeksema, F. W., & Slump, C. H. (2004). Opportunities for Adaptivity in the UMTS Terminal Receiver: The Path-Search Function. In Proceedings of the STW program: ProRISC (pp. 294-300). Veldhoven, The Netherlands: STW/NWO/Dutch Ministry of Economic Affairs.
Potman, J. ; Damstra, Marijn ; Hoeksema, F.W. ; Slump, Cornelis H. / Opportunities for Adaptivity in the UMTS Terminal Receiver: The Path-Search Function. Proceedings of the STW program: ProRISC. Veldhoven, The Netherlands : STW/NWO/Dutch Ministry of Economic Affairs, 2004. pp. 294-300
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abstract = "Wireless communication systems will have to become more and more exible. In the Adaptive Wireless Networking project we try to develop such a exible wireless communication system by developing algorithms for adaptive implementation of the digital signal processing functions in wireless communication systems. Within the limits of a wireless communication system standard there are two kinds of adaptivity: algorithm-selection adaptivity and algorithm-parameter adaptivity. In this paper we focus on algorithm-selection adaptivity in the UMTS path search function. Therefore we describe two path search algorithms: a Power Delay Prole (PDP) based algorithm and a Maximum Likelihood Estimate (MLE) based algorithm. We study and compare the performance of these algorithms under a number of multipath channel conditions by means of simulations. The MLE based algorithm is able to resolve a larger number of paths, especially when the paths are closely spaced, at the cost of an increased computational complexity. Therefore, using algorithm-selection adaptivity in the UMTS path search function seems to be useful. The MLE based algorithm is used when there are strong closely spaced path and the PDP based algorithm is used in all other conditions, appears to be useful. However, in order to be conclusive a few points will still have to be studied.",
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Potman, J, Damstra, M, Hoeksema, FW & Slump, CH 2004, Opportunities for Adaptivity in the UMTS Terminal Receiver: The Path-Search Function. in Proceedings of the STW program: ProRISC. STW/NWO/Dutch Ministry of Economic Affairs, Veldhoven, The Netherlands, pp. 294-300, 15th Annual Workshop on Circuits, Systems and Signal Processing, ProRisc 2004, Veldhoven, Netherlands, 25/11/04.

Opportunities for Adaptivity in the UMTS Terminal Receiver: The Path-Search Function. / Potman, J.; Damstra, Marijn; Hoeksema, F.W.; Slump, Cornelis H.

Proceedings of the STW program: ProRISC. Veldhoven, The Netherlands : STW/NWO/Dutch Ministry of Economic Affairs, 2004. p. 294-300.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

TY - GEN

T1 - Opportunities for Adaptivity in the UMTS Terminal Receiver: The Path-Search Function

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AU - Damstra, Marijn

AU - Hoeksema, F.W.

AU - Slump, Cornelis H.

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N2 - Wireless communication systems will have to become more and more exible. In the Adaptive Wireless Networking project we try to develop such a exible wireless communication system by developing algorithms for adaptive implementation of the digital signal processing functions in wireless communication systems. Within the limits of a wireless communication system standard there are two kinds of adaptivity: algorithm-selection adaptivity and algorithm-parameter adaptivity. In this paper we focus on algorithm-selection adaptivity in the UMTS path search function. Therefore we describe two path search algorithms: a Power Delay Prole (PDP) based algorithm and a Maximum Likelihood Estimate (MLE) based algorithm. We study and compare the performance of these algorithms under a number of multipath channel conditions by means of simulations. The MLE based algorithm is able to resolve a larger number of paths, especially when the paths are closely spaced, at the cost of an increased computational complexity. Therefore, using algorithm-selection adaptivity in the UMTS path search function seems to be useful. The MLE based algorithm is used when there are strong closely spaced path and the PDP based algorithm is used in all other conditions, appears to be useful. However, in order to be conclusive a few points will still have to be studied.

AB - Wireless communication systems will have to become more and more exible. In the Adaptive Wireless Networking project we try to develop such a exible wireless communication system by developing algorithms for adaptive implementation of the digital signal processing functions in wireless communication systems. Within the limits of a wireless communication system standard there are two kinds of adaptivity: algorithm-selection adaptivity and algorithm-parameter adaptivity. In this paper we focus on algorithm-selection adaptivity in the UMTS path search function. Therefore we describe two path search algorithms: a Power Delay Prole (PDP) based algorithm and a Maximum Likelihood Estimate (MLE) based algorithm. We study and compare the performance of these algorithms under a number of multipath channel conditions by means of simulations. The MLE based algorithm is able to resolve a larger number of paths, especially when the paths are closely spaced, at the cost of an increased computational complexity. Therefore, using algorithm-selection adaptivity in the UMTS path search function seems to be useful. The MLE based algorithm is used when there are strong closely spaced path and the PDP based algorithm is used in all other conditions, appears to be useful. However, in order to be conclusive a few points will still have to be studied.

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Potman J, Damstra M, Hoeksema FW, Slump CH. Opportunities for Adaptivity in the UMTS Terminal Receiver: The Path-Search Function. In Proceedings of the STW program: ProRISC. Veldhoven, The Netherlands: STW/NWO/Dutch Ministry of Economic Affairs. 2004. p. 294-300