Siddhartha Mallik

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— We consider the problem of code design for a set of parallel correlated Rayleigh fading channels. This design problem arises whenever a channel can be decomposed into parallel channels, for example in OFDM schemes using Weyl-Heisenberg bases over underspread fading channels [1]. Schemes involving rotations of integer lattices have been proposed in [2] as(More)
We study the problem of modulation and coding for doubly dispersive, i.e., time and frequency selective fading channels. Using the recent result that under-spread linear systems are approximately diagonalized by biorthogonal Weyl-Heisenberg bases, we arrive at a canonical formulation of modulation and code design. For coherent reception with maximum(More)
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