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Systems of quasi-Walsh functions are developed which simultaneously enable multiple access as well as secure communication and jamming resistance. In this system, a pseudo random sequence of diagonal isometries post multiplies a Hadamard matrix, thereby generating the orthogonal direct spreading sequences. Minimal mutual interference is a consequence of the resulting orthogonal spreading. Utilizing bit-by-bit distinct orthogonal codes gives the added benefit of high signal hiding capability and jamming resistance. An encoding scheme is presented which uniquely determines the actual quasi-Walsh system in use
Published in:
Personal Wireless Communications, 2000 IEEE International Conference on
Date of Conference: 2000
- Page(s):
- 24 - 27
- Meeting Date :
- 17 Dec 2000-20 Dec 2000
- Print ISBN:
- 0-7803-5893-7
- INSPEC Accession Number:
- 6970375
- Conference Location :
- Hyderabad
- Digital Object Identifier :
- 10.1109/ICPWC.2000.905766
- Product Type:
- Conference Publications
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