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Title: Comparison of Direct Sequence Spread Spectrum Rake Receiver with a Maximum Ratio Combining Multicarrier Spread Spectrum Receiver

This paper presents a theoretical analysis of the performance of a filter bank-based multicarrier spread spectrum (FB-MC-SS) system. We consider an FB-MC-SS setup where each data symbol is spread across multiple subcarriers, but there is no spreading in time. The results are then compared with those of the well-known direct sequence spread spectrum (DS-SS) system with a rake receiver for its best performance. We compare the two systems when the channel noise is white. We prove that as the processing gains of the two systems tend to infinity both approach the same performance. However, numerical simulations show that, in practice, where processing gain is limited, FB-MC-SS outperforms DS-SS.
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Journal Article
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Journal Name: 2014 IEEE International Conference on Communications (ICC)
Research Org:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
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Country of Publication:
United States
99 GENERAL AND MISCELLANEOUS Direct Sequence; Filter Bank; Filterbank; Maximum Ratio Combining; Multicarrier Spread Spectrum; Rake Receiver; Reciever; Spread Spectrum