Branch and bound algorithm for code spread OFDM

In this paper we introduce Integer Quadratic Programming approach based on the Branch and Bound (BB) algorithm to Code Spread OFDM (CSOFDM) system. Moreover, we propose three simple modifications to the BB algorithm based on the initial Minimum Mean Square Error (MMSE) solution that greatly reduce t...

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Bibliographic Details
Main Authors: Elghariani, A., Zoltowski, M. D.
Format: Conference Proceeding
Language:English
Subjects:
Bit error rate
Branch and Bound
Complexity theory
CSOFDM
MMSE
OFDM
Quadratic programming
root node
Upper bound
Vectors
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Summary:In this paper we introduce Integer Quadratic Programming approach based on the Branch and Bound (BB) algorithm to Code Spread OFDM (CSOFDM) system. Moreover, we propose three simple modifications to the BB algorithm based on the initial Minimum Mean Square Error (MMSE) solution that greatly reduce the complexity of BB and help realizing the near optimal detection of CSOFDM with large number of subcarriers.
ISSN:2373-0803
2693-3551
DOI:10.1109/SSP.2012.6319838