Abstract
In this paper the performance of Carrier
Interferometry (CI) and Pseudo-Orthogonal Carrier Interferometry (PO-CI) [1] implementations of Multi-Carrier Code Division Multiple Access (MC-CDMA) are investigated. Comparisons are made with the performance of traditional MCCDMA (incorporating Hadamard-Walsh spreading codes) [2],[3] and Coded Orthogonal Frequency Division Multiplexing (COFDM) [4]. These systems are simulated over a 20MHz bandwidth, wideband, wide-sense stationary, statistically uncorrelated Rayleigh fading channel suffering additive white Gaussian noise (AWGN) and phase noise. The two channel
models employed are consistent with the Model B ‘Indoor and Office’ and Model B ‘Outdoor to Indoor and Pedestrian’ test environment specifications proposed by ETSI for UMTS
Terrestrial Radio Access (UTRA) [5]. The BPSK CI system was found to outperform both of the
equivalent COFDM and MC-CDMA systems, providing 1dB and 1.5dB performance gains respectively at a bit error rate (BER) of
10-3. The BPSK PO-CI system, shown to offer twice the capacity of the equivalent MC-CDMA, COFDM and CI systems, was found to offer the same performance as MC-CDMA. For higher order modulation schemes, the CI system’s
performance was found to equal that of the equivalent MCCDMA system, whilst the performance of PO-CI was found to be
very poor. In the presence of phase noise, the CI system was found to outperform the MC-CDMA and COFDM systems, suffering a far
lower performance loss for a given level of phase noise and providing a softer fail as this level was increased. This soft fail
characteristic was also observed in the PO-CI system.
Translated title of the contribution | Performance evaluation of carrier interferometry implementations of MC-CDMA over a wideband channel suffering phase noise |
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Original language | English |
Title of host publication | Vehicular Technology Conference 2005 (VTC 2005-Fall) |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 3043 - 3047 |
Number of pages | 4 |
Volume | 5 |
ISBN (Print) | 0780388879 |
DOIs | |
Publication status | Published - Sept 2005 |
Event | 62nd Vehicular Technology Conference 2005 (VTC 2005-Fall) - Dallas, United States Duration: 1 Nov 2005 → … |
Conference
Conference | 62nd Vehicular Technology Conference 2005 (VTC 2005-Fall) |
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Country/Territory | United States |
City | Dallas |
Period | 1/11/05 → … |
Bibliographical note
Conference Proceedings/Title of Journal: IEEE 62nd Vehicular Technology Conference, 2005 (VTC 2005-Fall)Rose publication type: Conference contribution
Sponsorship: The authors would like to thank the OSIRIS project and its members for providing both financial and academic support
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Keywords
- Carrier interferometry
- phase noise
- multi-carrier code division multiple access (MC-CDMA)
- frequency domain spreading