Abstract
We describe a new receiver structure for direct-sequence spread spectrum signals in highly dispersive multipath wireless channels. This structure uses spread-spectrum correlation detection in combination with decision feedback multipath cancellation (DFMC). The multipath discrimination capability of correlation detection is used for suppression of symbol self-interference, and DFMC performs cancellation of intersymbol interference. We demonstrate that a significant performance improvement is possible over that for correlation detection alone. In particular, simulation results show that the joint correlator-DFMC detector does not suffer from error propagation at typical error rates and can approach the performance of the ideal single-path matched filter detector. This technique holds promise for high-rate wireless applications and where bandwidth limitations allow only modest spreading gains.
| Original language | English (US) |
|---|---|
| Title of host publication | IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC |
| Publisher | IEEE |
| Pages | 217-220 |
| Number of pages | 4 |
| State | Published - 1997 |
| Externally published | Yes |
| Event | Proceedings of the 1997 1st IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC'97 - Paris, Fr Duration: Apr 16 1997 → Apr 18 1997 |
Other
| Other | Proceedings of the 1997 1st IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC'97 |
|---|---|
| City | Paris, Fr |
| Period | 4/16/97 → 4/18/97 |
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ASJC Scopus subject areas
- Signal Processing
Cite this
Decision feedback multipath cancellation for coherent direct sequence spread spectrum wireless networks. / Flikkema, Paul G.
IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC. IEEE, 1997. p. 217-220.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Decision feedback multipath cancellation for coherent direct sequence spread spectrum wireless networks
AU - Flikkema, Paul G
PY - 1997
Y1 - 1997
N2 - We describe a new receiver structure for direct-sequence spread spectrum signals in highly dispersive multipath wireless channels. This structure uses spread-spectrum correlation detection in combination with decision feedback multipath cancellation (DFMC). The multipath discrimination capability of correlation detection is used for suppression of symbol self-interference, and DFMC performs cancellation of intersymbol interference. We demonstrate that a significant performance improvement is possible over that for correlation detection alone. In particular, simulation results show that the joint correlator-DFMC detector does not suffer from error propagation at typical error rates and can approach the performance of the ideal single-path matched filter detector. This technique holds promise for high-rate wireless applications and where bandwidth limitations allow only modest spreading gains.
AB - We describe a new receiver structure for direct-sequence spread spectrum signals in highly dispersive multipath wireless channels. This structure uses spread-spectrum correlation detection in combination with decision feedback multipath cancellation (DFMC). The multipath discrimination capability of correlation detection is used for suppression of symbol self-interference, and DFMC performs cancellation of intersymbol interference. We demonstrate that a significant performance improvement is possible over that for correlation detection alone. In particular, simulation results show that the joint correlator-DFMC detector does not suffer from error propagation at typical error rates and can approach the performance of the ideal single-path matched filter detector. This technique holds promise for high-rate wireless applications and where bandwidth limitations allow only modest spreading gains.
UR - http://www.scopus.com/inward/record.url?scp=0031361343&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031361343&partnerID=8YFLogxK
M3 - Conference contribution
SP - 217
EP - 220
BT - IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC
PB - IEEE
ER -