Abstract
In a code-multiplexed transmitted-reference (CM-TR) ultra-wideband (UWB) system [8], the reference pulse trains are made orthogonal to the information-bearing signal by code-shifting. The receiver is simple because it avoids the use of an analog delay line. Moreover, the CM-TR UWB system outperforms the original TR-UWB system in terms of error rates. In this paper, we extend the CM-TR concept to transmit multiple bit streams, forming the multiple-stream code-multiplexed (MSCM) TR scheme. The proposed scheme consists of a code-multiplexed reference signal and several information-bearing signals. Moreover, the data transmission rate of the MSCM-TR scheme is several times that of the CM-TR scheme with the same symbol period. Compared with the CM-TR scheme, the new scheme requires a transceiver with a slightly more complicated baseband processing unit. Theoretical and simulated results show that the error performance of MSCM-TR scheme is comparable with that of the CM-TR scheme when the peak power is not limited. We also analyze the tradeoff between the data rate and the number of frames under a peak-power constraint.
| Original language | English |
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| Title of host publication | 2010 6th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2010 |
| DOIs | |
| Publication status | Published - 25 Nov 2010 |
| Event | 2010 6th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2010 - Chengdu, China Duration: 23 Sept 2010 → 25 Sept 2010 |
Conference
| Conference | 2010 6th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2010 |
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| Country/Territory | China |
| City | Chengdu |
| Period | 23/09/10 → 25/09/10 |
Keywords
- Bit-error rate (BER)
- Code-multiplexed reference-transmitted (CM-TR)
- Multiple-stream code-multiplexed reference-transmitted (MSCM-TR)
- Ultra-wideband (UWB)
ASJC Scopus subject areas
- Computer Networks and Communications
- Communication