Software Radio Implementation of a Smart Antenna System on Digital Signal Processors for cdma2000

Küçük, Kerem; Karakoc, Mustafa; Kavak, Adnan

doi:10.1007/978-3-540-30561-3_11

Cited by 4 publications

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References 4 publications

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“…For the above implementation, in order to compare with the DSP implementations previously obtained [12], received data in cdma2000 reverse link format is generated and loaded…”

Section: Simulation Results and Dsp Comparisionmentioning

confidence: 99%

A Comparative Study of Antenna Array Algorithm Implementations using FPGA and DSP for cdma2000

Şahin

Dikmese

Küçük

et al. 2006

2006 3rd International Symposium on Wireless Communication Systems

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This paper demonstrates implementation of some CDMA system compatible antenna array algorithms namely LMS and space code correlator (SCC) on an FPGA. A comparative study of FPGA and DSP implementation issues such as architecture complexity and weight vector computation time is also given. The implementations of the algorithms are performed on Xilinx Virtex II Pro FPGA and Texas Instruments (TI) TMS32OC67x floating-point DSP platforms. For the signal modeling, cdma2000 reverse link signal model is considered for uniform linear array topology and varying multipath propagation conditions. Results show that the both algorithms, which were implemented on Xilinx XC2VP4 and TMS320C6713 DSP, provides weight vector computation time smaller than 10 ms period.

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“…For the above implementation, in order to compare with the DSP implementations previously obtained [12], received data in cdma2000 reverse link format is generated and loaded…”

Section: Simulation Results and Dsp Comparisionmentioning

confidence: 99%

A Comparative Study of Antenna Array Algorithm Implementations using FPGA and DSP for cdma2000

Şahin

Dikmese

Küçük

et al. 2006

2006 3rd International Symposium on Wireless Communication Systems

Self Cite

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“…We implement Least Mean Squares (LMS), Constant Modulus (CM), and our previously proposed practical Space Code Correlator (SCC) [14][15][16] based beamformers for CDMA2000. We evaluate their performance in terms of beamforming accuracy, FPGA resource utilization and convergence time.…”

Section: Introductionmentioning

confidence: 99%

FPGA Based Implementation and Comparison of Beamformers for CDMA2000

Dikmese

Kavak

Küçük

et al. 2009

Wireless Pers Commun

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For the integration of smart antennas into third generation code division multiple access (CDMA) base stations, it still remains as a challenging task to implement smart antenna algorithms on programmable processors. In this paper, we study implementations of some CDMA compatible beamforming algorithms, namely least mean square (LMS), constant modulus (CM), and space code correlator (SCC) algorithms, using Xilinx's Virtex family FPGAs. This study exhibits feasibility of implementing even simple, practical, and computationally small algorithms based on today's most powerful FPGA technologies. 16 and 32 bits floating point implementations of the algorithms are investigated using both Virtex II and Virtex IV FPGAs. CDMA2000 reverse link baseband signal format is used in the signal modeling. Randomly changing fading and Direction-of-arrivals (DOAs) of multipaths are considered as a channel condition. The implementation results in terms of beamforming 123 234 S. Dikmese et al.accuracy, FPGA resource utilization, weight vector computation time, and DOA estimation error are presented. Beamformer weight vectors using LMS and CM can be computed within less than 20 µs on Virtex II FPGA and 10 µs on Virtex IV FPGA, and using SCC it can be achieved within less than 22 µs on Virtex IV FPGA. These results show that FPGAs provide approximately 500 times faster speed in implementations than our previous work with DSPs.

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Scalable location estimation using smart antennas in wireless sensor networks

Küçük

Kavak

2010

Ad Hoc Networks

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Software Radio Implementation of a Smart Antenna System on Digital Signal Processors for cdma2000

Cited by 4 publications

References 4 publications

A Comparative Study of Antenna Array Algorithm Implementations using FPGA and DSP for cdma2000

A Comparative Study of Antenna Array Algorithm Implementations using FPGA and DSP for cdma2000

FPGA Based Implementation and Comparison of Beamformers for CDMA2000

Scalable location estimation using smart antennas in wireless sensor networks

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