Frequency domain approach to channel estimation and signal detection in HSUPA

Ilkka Moilanen, Paavo Hahtola, Jukka Törmälehto

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

In high speed uplink packet access (HSUPA), higher order modulation methods are one possible solution to support increased peak data rate requirements at high signal-to-interference-plus-noise ratios (SINR). Multipath propagation affects peak data rate performance. At high SINR, relatively large number of multipath components can be exploited for signal detection. It is computationally more cost-efficient to exploit such a number of diversity components in the frequency than in the time domain. Therefore, we have chosen an advanced receiver structure, in which frequency domain processing is utilized. We introduce simple finger allocation and channel estimation algorithms based on the frequency domain despreading. They are proven to offer good performance throughout the receiver stages. To combat intersymbol interference (ISI), single-user chip-level frequency domain equalizer (FDE) is used to detect the high data rate users. Parallel interference cancellation (PIC) is applied in the frequency domain to suppress the interference from data users to speech users. The performance of the whole receiver chain is presented as a function of the number of the fingers, which illustrates the demand for low complexity frequency domain processing. In particular, the simple finger allocation, where a sub-window of consecutive fingers is allocated, is an interesting option for the high SINR region.
Original languageEnglish
Title of host publicationProceedings
Subtitle of host publicationIEEE Vehicular Technology Conference, VTC Fall 2011
PublisherInstitute of Electrical and Electronic Engineers IEEE
Number of pages5
ISBN (Electronic)978-1-4244-8327-3
ISBN (Print)978-1-4244-8328-0
DOIs
Publication statusPublished - 2011
MoE publication typeA4 Article in a conference publication
Event74th IEEE Vehicular Technology Conference, VTC Fall 2011 - San Francisco, United States
Duration: 5 Sep 20118 Sep 2011
Conference number: 74

Conference

Conference74th IEEE Vehicular Technology Conference, VTC Fall 2011
Abbreviated titleVTC Fall 2011
CountryUnited States
CitySan Francisco
Period5/09/118/09/11

Fingerprint

Signal detection
Channel estimation
Intersymbol interference
Multipath propagation
Equalizers
Processing
Modulation
Costs

Keywords

  • HSUPA
  • frequency domain processing
  • channel estimation
  • MMSE equalization
  • interference cancellation
  • turbo coding

Cite this

Moilanen, I., Hahtola, P., & Törmälehto, J. (2011). Frequency domain approach to channel estimation and signal detection in HSUPA. In Proceedings: IEEE Vehicular Technology Conference, VTC Fall 2011 Institute of Electrical and Electronic Engineers IEEE. https://doi.org/10.1109/VETECF.2011.6093040
Moilanen, Ilkka ; Hahtola, Paavo ; Törmälehto, Jukka. / Frequency domain approach to channel estimation and signal detection in HSUPA. Proceedings: IEEE Vehicular Technology Conference, VTC Fall 2011. Institute of Electrical and Electronic Engineers IEEE, 2011.
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Moilanen, I, Hahtola, P & Törmälehto, J 2011, Frequency domain approach to channel estimation and signal detection in HSUPA. in Proceedings: IEEE Vehicular Technology Conference, VTC Fall 2011. Institute of Electrical and Electronic Engineers IEEE, 74th IEEE Vehicular Technology Conference, VTC Fall 2011, San Francisco, United States, 5/09/11. https://doi.org/10.1109/VETECF.2011.6093040

Frequency domain approach to channel estimation and signal detection in HSUPA. / Moilanen, Ilkka; Hahtola, Paavo; Törmälehto, Jukka.

Proceedings: IEEE Vehicular Technology Conference, VTC Fall 2011. Institute of Electrical and Electronic Engineers IEEE, 2011.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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Moilanen I, Hahtola P, Törmälehto J. Frequency domain approach to channel estimation and signal detection in HSUPA. In Proceedings: IEEE Vehicular Technology Conference, VTC Fall 2011. Institute of Electrical and Electronic Engineers IEEE. 2011 https://doi.org/10.1109/VETECF.2011.6093040