A demonstrator for a low-cost, cordless, multi-carrier spread-spectrum system

Kuhne, J.; Nahler, A.; Hosemann, M.; Fettweis, Gerhard; Kovacs, G.; Riha, G.

doi:10.1109/58.818748

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Cited by 5 publications

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“…Additionally, we are not the only group interested in pursuing this technology. High frequency correlators have been developed for a 2.4GHz spread spectrum modem [6], and more recently, a multi-carrier spread spectrum modem operating at 2.4GHz was demonstrated [7]. Recent work with SAW filters indicates the feasibility of extending these operating frequencies to 10GHz [8].…”

Section: Executive Summarymentioning

confidence: 99%

Programmable SAW development :Sandia/NASA project final report.

Brocato¹

2004

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Section: Executive Summarymentioning

confidence: 99%

Programmable SAW development :Sandia/NASA project final report.

Brocato¹

2004

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Reduced and differential parallel interference cancellation for CDMA systems

Nahler¹,

Irmer²,

Fettweis³

2002

IEEE J. Select. Areas Commun.

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Since code division multiple access systems in multipath environments suffer from multiple access interference (MAI), multiuser detection schemes should be used in the receivers. Parallel interference cancellation (PIC) is a promising method to combat MAI due to its relatively low computational complexity and good performance. It is shown in this paper that the complexity of PIC is still high for realistic scenarios in terms of the symbol rate, the number of users, spreading gain, and multipath components. However, two novel methods are introduced to reduce significantly the complexity without sacrificing performance. The first approach, called reduced PIC, takes advantage of the composition of the interference to concentrate interference cancellation only on significant terms. The second approach, called differential PIC, exploits the multistage character of PIC to avoid unnecessary double calculations of certain terms in consecutive stages. It is shown that a combination of both approaches leads to a performance very close to the single-user bound whereas the complexity can be kept on the order of the conventional RAKE receiver.

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Parallel interference cancellation with reduced complexity for multi-carrier spread-spectrum FCDMA

Nahler

Irmer²,

Fettweis³

2000 IEEE Sixth International Symposium on Spread Spectrum Techniques and Applications. ISSTA 2000. Proceedings (Cat. No.00TH85

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A demonstrator for a low-cost, cordless, multi-carrier spread-spectrum system

Cited by 5 publications

References 4 publications

Programmable SAW development :Sandia/NASA project final report.

Programmable SAW development :Sandia/NASA project final report.

Reduced and differential parallel interference cancellation for CDMA systems

Parallel interference cancellation with reduced complexity for multi-carrier spread-spectrum FCDMA

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