Multipath interference canceller for high-speed packet transmission with adaptive modulation and coding scheme in W-CDMA forward link
This paper proposes a multipath interference canceller (MPIC) associated with orthogonal code-multiplexing that achieves much higher peak throughput than 2 Mbit/s with adaptive data modulation for high-speed packet transmission in the wideband direct sequence-code division multiple access (W-CDMA) f...
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| Vydáno v: | IEEE journal on selected areas in communications Ročník 20; číslo 2; s. 419 - 432 |
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| Hlavní autoři: | , , |
| Médium: | Journal Article |
| Jazyk: | angličtina |
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New York
IEEE
01.02.2002
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
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| ISSN: | 0733-8716, 1558-0008 |
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| Abstract | This paper proposes a multipath interference canceller (MPIC) associated with orthogonal code-multiplexing that achieves much higher peak throughput than 2 Mbit/s with adaptive data modulation for high-speed packet transmission in the wideband direct sequence-code division multiple access (W-CDMA) forward link, and evaluates its throughput performance by computer simulation. The simulation results elucidate that sufficient multipath interference (MPI) suppression is achieved by a four-stage MPIC with 6-12 orthogonal code-multiplexing using one iterative channel estimation with pilot and decision feedback data symbols and further that the interference rejection weight control according to the number of observed multipaths is effective in improving the throughput. It is also demonstrated that MPIC exhibits a superior MPI suppression effect to a chip equalizer in the lower received signal energy per bit-to-background noise spectrum density (E/sub b//N/sub 0/) channel around 0-3 dB owing to the successive channel estimation at each stage. We show that the maximum peak throughput using MPIC is approximately 2.1 fold that without MPIC in a two-path and three-path Rayleigh fading channel and that the peak throughput of 8.0 Mbit/s is achieved using 64 QAM data modulation in a two-path fading channel within a 5 MHz bandwidth. Furthermore, the required average E/sub b//N/sub 0/ for satisfying the same throughput with MPIC is decreased by more than 2.0 dB. |
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| AbstractList | The simulation results elucidate that sufficient multipath interference (MPI) suppression is achieved by a four-stage MPIC with 6-12 orthogonal code-multiplexing using one iterative channel estimation with pilot and decision feedback data symbols and further that the interference rejection weight control according to the number of observed multipaths is effective in improving the throughput. This paper proposes a multipath interference canceller (MPIC) associated with orthogonal code-multiplexing that achieves much higher peak throughput than 2 Mbit/s with adaptive data modulation for high-speed packet transmission in the wideband direct sequence-code division multiple access (W-CDMA) forward link, and evaluates its throughput performance by computer simulation. The simulation results elucidate that sufficient multipath interference (MPI) suppression is achieved by a four-stage MPIC with 6-12 orthogonal code-multiplexing using one iterative channel estimation with pilot and decision feedback data symbols and further that the interference rejection weight control according to the number of observed multipaths is effective in improving the throughput. It is also demonstrated that MPIC exhibits a superior MPI suppression effect to a chip equalizer in the lower received signal energy per bit-to-background noise spectrum density (E/sub b//N/sub 0/) channel around 0-3 dB owing to the successive channel estimation at each stage. We show that the maximum peak throughput using MPIC is approximately 2.1 fold that without MPIC in a two-path and three-path Rayleigh fading channel and that the peak throughput of 8.0 Mbit/s is achieved using 64 QAM data modulation in a two-path fading channel within a 5 MHz bandwidth. Furthermore, the required average E/sub b//N/sub 0/ for satisfying the same throughput with MPIC is decreased by more than 2.0 dB. This paper proposes a multipath interference canceller (MPIC) associated with orthogonal code-multiplexing that achieves much higher peak throughput than 2 Mbit/s with adaptive data modulation for high-speed packet transmission in the wideband direct sequence-code division multiple access (W-CDMA) forward link, and evaluates its throughput performance by computer simulation. The simulation results elucidate that sufficient multipath interference (MPI) suppression is achieved by a four-stage MPIC with 6-12 orthogonal code-multiplexing using one iterative channel estimation with pilot and decision feedback data symbols and further that the interference rejection weight control according to the number of observed multipaths is effective in improving the throughput. It is also demonstrated that MPIC exhibits a superior MPI suppression effect to a chip equalizer in the lower received signal energy per bit-to-background noise spectrum density (E sub(b)/N sub(0)) channel around 0-3 dB owing to the successive channel estimation at each stage. We show that the maximum peak throughput using MPIC is approximately 2.1 fold that without MPIC in a two-path and three-path Rayleigh fading channel and that the peak throughput of 8.0 Mbit/s is achieved using 64 QAM data modulation in a two-path fading channel within a 5 MHz bandwidth. Furthermore, the required average E sub(b)/N sub(0) for satisfying the same throughput with MPIC is decreased by more than 2.0 dB This paper proposes a multipath interference canceller (MPIC) associated with orthogonal code-multiplexing that achieves much higher peak throughput than 2 Mbit/s with adaptive data modulation for high-speed packet transmission in the wideband direct sequence-code division multiple access (W-CDMA) forward link, and evaluates its throughput performance by computer simulation. The simulation results elucidate that sufficient multipath interference (MPI) suppression is achieved by a four-stage MPIC with 6-12 orthogonal code-multiplexing using one iterative channel estimation with pilot and decision feedback data symbols and further that the interference rejection weight control according to the number of observed multipaths is effective in improving the throughput. It is also demonstrated that MPIC exhibits a superior MPI suppression effect to a chip equalizer in the lower received signal energy per bit-to-background noise spectrum density (E(b)/N(0)) channel around 0-3 dB owing to the successive channel estimation at each stage. We show that the maximum peak throughput using MPIC is approximately 2.1 fold that without MPIC in a two-path and three-path Rayleigh fading channel and that the peak throughput of 8.0 Mbit/s is achieved using 64 QAM data modulation in a two-path fading channel within a 5 MHz bandwidth. Furthermore, the required average E(b)/N(0) for satisfying the same throughput with MPIC is decreased by more than 2.0 dB |
| Author | Higuchi, K. Sawahashi, M. Fujiwara, A. |
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| References | ref15 ref14 ref11 ref10 Okawa (ref13) 1998; E81-B ref2 Sawahashi (ref18) 1996; E79-B ref1 Okawa (ref4) 2000; E83-B ref17 Sampei (ref19) 1997 ref16 Rasmunssen (ref21) ref8 Sawahashi (ref12) 1998; E81-A ref7 ref9 ref6 ref5 Miki (ref20) 2001; E84-A |
| References_xml | – volume-title: Application of Digital Wireless Technologies to Global Wireless Communications year: 1997 ident: ref19 – ident: ref6 article-title: Physical Layer Aspects of UTRA High Speed Downlink Packet Access publication-title: 3GPP, TR25.848 – volume: E81-A start-page: 957 year: 1998 ident: ref12 article-title: Interference replica weight control for pilot symbol-assisted coherent multistage interference canceller using recursive channel estimation in DS-CDMA mobile radio publication-title: IEICE Trans. Fundamentals – volume: E84-A start-page: 1681 year: 2001 ident: ref20 article-title: Comparison of hybrid ARQ schemes and optimization of key parameters for high-speed packet transmission in W-CDMA forward link publication-title: IEICE Trans. Commun. – volume: E81-B start-page: 777 year: 1998 ident: ref13 article-title: Orthogonal forward link using orthogonal multispreading factor codes for coherent DS-CDMA mobile radio publication-title: IEICE Trans. Commun. – ident: ref10 doi: 10.1109/TCOM.1986.1096645 – ident: ref15 doi: 10.1109/ACSSC.1998.750943 – volume: E83-B start-page: 1602 year: 2000 ident: ref4 article-title: Experiments on 2-mb/s data transmission applying antenna diversity reception over 5-MHz W-CDMA mobile radio link publication-title: IEICE Trans. Commun. – ident: ref7 doi: 10.1109/25.728485 – ident: ref14 doi: 10.1109/VETEC.1997.596348 – start-page: 348 volume-title: Proc. ISSSTA ’2000 ident: ref21 article-title: On ping-pong effects in linear interference cancellation for CDMA – ident: ref9 doi: 10.1109/ISSSTA.1998.726250 – ident: ref16 doi: 10.1109/ICASSP.2001.940445 – ident: ref8 doi: 10.1109/MCOM.1984.1091865 – ident: ref11 doi: 10.1109/26.659484 – ident: ref2 doi: 10.1109/35.714620 – ident: ref17 doi: 10.1109/4234.775251 – ident: ref1 doi: 10.1109/35.714618 – ident: ref5 doi: 10.1109/35.852034 – volume: E79-B start-page: 1262 year: 1996 ident: ref18 article-title: Pilot symbol-assisted coherent multistage interference canceller using recursive channel estimation for DS-CDMA mobile radio publication-title: IEICE Trans. Commun. |
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| Snippet | This paper proposes a multipath interference canceller (MPIC) associated with orthogonal code-multiplexing that achieves much higher peak throughput than 2... The simulation results elucidate that sufficient multipath interference (MPI) suppression is achieved by a four-stage MPIC with 6-12 orthogonal... |
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| SubjectTerms | Channel estimation Channels Code Division Multiple Access Computational modeling Computer simulation Fading Interference Interference cancellation Interference suppression Links Modulation Modulation coding Multiaccess communication Packet transmission Throughput Wideband Wireless communications |
| Title | Multipath interference canceller for high-speed packet transmission with adaptive modulation and coding scheme in W-CDMA forward link |
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