Digital signal processor against field programmable gate array implementations of space–code correlator beamformer for smart antennas
Software radio implementations of beamformers on programmable processors such as digital signal processor (DSP) and field programmable gate array (FPGA) still remain as a challenge for the integration of smart antennas into existing wireless base stations for 3G systems. This study presents the comp...
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| Published in: | IET microwaves, antennas & propagation Vol. 4; no. 5; pp. 593 - 599 |
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| Main Authors: | , , , , , |
| Format: | Journal Article |
| Language: | English |
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Stevenage
The Institution of Engineering & Technology
01.05.2010
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| ISSN: | 1751-8725, 1751-8733 |
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| Abstract | Software radio implementations of beamformers on programmable processors such as digital signal processor (DSP) and field programmable gate array (FPGA) still remain as a challenge for the integration of smart antennas into existing wireless base stations for 3G systems. This study presents the comparison of DSP- and FPGA-based implementations of space-code correlator (SCC) beamformer, which is practical to use in CDMA2000 systems. Implementation methodology is demonstrated and results regarding beamforming accuracy, weight vector computation time and resource utilisation are presented. The SCC algorithm is implemented on Texas Instruments TMS320C6713 floating-point digital signal processors (DSP) and Xilinx's VirtexIV family FPGA. In signal modelling, CDMA2000 reverse link format is employed. The results show that beamformer weights can be obtained within less than 10 ms via implementation on c6713 DSP with direction-of-arrival search resolution of Δθ = 2 degrees, whereas it can be achieved within less than 25 μs on VirtexIV FPGA for five-element uniform linear array. |
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| AbstractList | Software radio implementations of beamformers on programmable processors such as digital signal processor (DSP) and field programmable gate array (FPGA) still remain as a challenge for the integration of smart antennas into existing wireless base stations for 3G systems. This study presents the comparison of DSP- and FPGA-based implementations of space-code correlator (SCC) beamformer, which is practical to use in CDMA2000 systems. Implementation methodology is demonstrated and results regarding beamforming accuracy, weight vector computation time and resource utilisation are presented. The SCC algorithm is implemented on Texas Instruments TMS320C6713 floating-point digital signal processors (DSP) and Xilinx's VirtexIV family FPGA. In signal modelling, CDMA2000 reverse link format is employed. The results show that beamformer weights can be obtained within less than 10 ms via implementation on c6713 DSP with direction-of-arrival search resolution of Δθ = 2 degrees, whereas it can be achieved within less than 25 μs on VirtexIV FPGA for five-element uniform linear array. Software radio implementations of beamformers on programmable processors such as digital signal processor (DSP) and field programmable gate array (FPGA) still remain as a challenge for the integration of smart antennas into existing wireless base stations for 3G systems. This study presents the comparison of DSP- and FPGA-based implementations of space-code correlator (SCC) beamformer, which is practical to use in CDMA2000 systems. Implementation methodology is demonstrated and results regarding beamforming accuracy, weight vector computation time and resource utilisation are presented. The SCC algorithm is implemented on Texas Instruments TMS320C6713 floating-point digital signal processors (DSP) and Xilinx's VirtexIV family FPGA. In signal modelling, CDMA2000 reverse link format is employed. The results show that beamformer weights can be obtained within less than 10 ms via implementation on c6713 DSP with direction-of-arrival search resolution of Delta [thetas] = 2 degrees, whereas it can be achieved within less than 25 mu s on VirtexIV FPGA for five-element uniform linear array. |
| Author | Dikmese, S. Kucuk, K. Dincer, H. Tangel, A. Kavak, A. Sahin, S. |
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| References_xml | – ident: 10.1049/iet-map.2009.0151_r14 – volume: 2 start-page: 1225 year: 2000 ident: 10.1049/iet-map.2009.0151_r10 publication-title: Proc. IEEE VTC'00 – volume: 17 start-page: 631 issn: 0733-8716 year: 1999 ident: 10.1049/iet-map.2009.0151_r1 doi: 10.1109/49.761041 – ident: 10.1049/iet-map.2009.0151_r6 doi: 10.1088/1126-6708/2001/03/031 – start-page: 141 year: 2002 ident: 10.1049/iet-map.2009.0151_r8 publication-title: Proc. IEEE Rawcon'02 – ident: 10.1049/iet-map.2009.0151_r20 – ident: 10.1049/iet-map.2009.0151_r22 – start-page: 714 year: 2006 ident: 10.1049/iet-map.2009.0151_r12 publication-title: Third Int. Symp. Wireless Communication Systems (ISWCS 2006) doi: 10.1109/ISWCS.2006.4362394 – start-page: 206 year: 1998 ident: 10.1049/iet-map.2009.0151_r21 publication-title: Proc. IEEE Symp. Field-Programmable Custom Computing Machines – year: 2009 ident: 10.1049/iet-map.2009.0151_r13 publication-title: Wirel. Pers. Commun. – volume: 3 start-page: 1529 year: 2003 ident: 10.1049/iet-map.2009.0151_r9 – ident: 10.1049/iet-map.2009.0151_r3 – volume: 44 start-page: 1136 issn: 1053-587X year: 1996 ident: 10.1049/iet-map.2009.0151_r15 doi: 10.1109/78.502327 – ident: 10.1049/iet-map.2009.0151_r2 – ident: 10.1049/iet-map.2009.0151_r4 doi: 10.1109/5.622504 – ident: 10.1049/iet-map.2009.0151_r5 – volume: 15 start-page: 86 issn: 1053-5888 year: 1998 ident: 10.1049/iet-map.2009.0151_r17 doi: 10.1109/79.664702 – ident: 10.1049/iet-map.2009.0151_r19 – volume: 49 start-page: 245 issn: 0929-6212 year: 2009 ident: 10.1049/iet-map.2009.0151_r16 doi: 10.1007/s11277-008-9570-6 – ident: 10.1049/iet-map.2009.0151_r18 – start-page: 596 year: 2005 ident: 10.1049/iet-map.2009.0151_r11 publication-title: Proc. of IEEE ISWCS'05 – start-page: 6 year: 2005 ident: 10.1049/iet-map.2009.0151_r7 publication-title: Proc. Int. Conf. Information Acquisition |
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| SubjectTerms | Antennas Beamforming Digital Digital signal processing Field programmable gate arrays Floating point arithmetic Microprocessors Signal processing |
| Title | Digital signal processor against field programmable gate array implementations of space–code correlator beamformer for smart antennas |
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