On-line Arithmetic for Detection in Digital Communication Receivers
| dc.citation.bibtexName | inproceedings | en_US |
| dc.citation.conferenceName | IEEE Symposium on Computer Arithmetic | en_US |
| dc.citation.firstpage | 257 | |
| dc.citation.lastpage | 265 | |
| dc.citation.location | Vail, CO | en_US |
| dc.contributor.author | Rajagopal, Sridhar | en_US |
| dc.contributor.author | Cavallaro, Joseph R. | en_US |
| dc.contributor.org | Center for Multimedia Communications (http://cmc.rice.edu/) | en_US |
| dc.date.accessioned | 2007-10-31T00:59:10Z | |
| dc.date.available | 2007-10-31T00:59:10Z | |
| dc.date.issued | 2001-06-20 | |
| dc.date.modified | 2003-11-10 | en_US |
| dc.date.note | 2001-09-18 | en_US |
| dc.date.submitted | 2001-06-20 | en_US |
| dc.description | Conference Paper | en_US |
| dc.description.abstract | This paper demonstrates the advantages of using on-line arithmetic for traditional and advanced detection algorithms for communication systems. Detection is one of the core computationally-intensive physical layer operations in a communication receiver and determines the communication data rates. Detection algorithms typically involve hard decisions} (sign based testing) to find the sign of the transmitted information bit. This results in extraneous computations in a conventional number system as the sign is obtained only at the end due to the Least Significant Digit First (LSDF) nature of computations. On-line arithmetic, based on a signed digit number representation, provides Most Significant Digit First (MSDF) computation. Hence, the computations can stop after the first non-zero MSD (sign) is computed and additional computations for the successive digits can be avoided. Back-conversion to a conventional number system is not required as the sign of the digit represents the detected bit. A comparison of a radix-4 serial digit on-line multiuser detector with an 8-bit parallel conventional arithmetic multiuser detector shows a decrease in latency by 1.95X, a 3X increase in throughput, and possible savings in area. | en_US |
| dc.description.sponsorship | Texas Advanced Technology Program | en_US |
| dc.description.sponsorship | Nokia | en_US |
| dc.description.sponsorship | National Science Foundation | en_US |
| dc.identifier.citation | S. Rajagopal and J. R. Cavallaro, "On-line Arithmetic for Detection in Digital Communication Receivers," 2001. | |
| dc.identifier.doi | http://dx.doi.org/10.1109/ARITH.2001.930127 | en_US |
| dc.identifier.uri | https://hdl.handle.net/1911/20225 | |
| dc.language.iso | eng | |
| dc.subject | On-line arithmetic | * |
| dc.subject | algorithm | * |
| dc.subject | multiuser detector | * |
| dc.subject.keyword | On-line arithmetic | en_US |
| dc.subject.keyword | algorithm | en_US |
| dc.subject.keyword | multiuser detector | en_US |
| dc.title | On-line Arithmetic for Detection in Digital Communication Receivers | en_US |
| dc.type | Conference paper | |
| dc.type.dcmi | Text |