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Self-encoded spread spectrum (SESS) is a novel modulation technique that acquires its spreading sequence from the randomness of an input data stream rather than through the use of the traditional pseudo-random (PN) code generator. The statistical properties of random codes in SESS offer a number of advantages over the deterministic PN codes. In this paper we propose a multiple-input multiple-output...
We propose a cooperative convolutional coding scheme that exploits spatial diversity and time diversity simultaneously. The proposed scheme combines the cooperative diversity with spread spectrum that achieves diversity gain with the number of relays and minimum free distance while maintaining an average power the same as the maximum ratio combiner (MRC). The results show that our cooperative convolutional...
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