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We describe our initial approach to MCM OFDM that uses entropy-based signal models to provide a sparse, efficient set of codes. Specifically, we consider applying a set of sparse orthogonal signals developed precisely to solve the space-time uncertainty of the Hirschman Uncertainty (itself a generalization of the Heisenberg Uncertainty) for finite-duration discrete time signals. These signals were...
Multiple subcarrier modulation is an appealing scheme for high-data rate optical communication. However a major drawback is its low average power efficiency. While subcarrier reservation is a common approach to combat this problem, little is known about the performance of algorithms that utilize subcarrier reservation. By combining properties of sparse signals with an abstract form of the Uncertainty...
A major drawback of OFDM is its large peak to average power ratio (PAPR). While subcarrier reservation is a common approach to combat this problem, little is known about the performance of algorithms that utilize subcarrier reservation. By combining properties of sparse signals with an abstract form of the uncertainty principle related to multiple subcarrier signals, we design an efficient iterative...
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