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This paper proves a novel sampling theorem with constant amplitude and variable width pulses. The theorem states that any bandlimited baseband signal within ±0.637 can be represented by a pulsewidth modulation (PWM) waveform with unit amplitude. The number of pulses in the waveform is equal to the number of Nyquist samples and the peak constraint is independent of whether the waveform is two-level...
This paper presents results on the capacity of large wireless systems with unknown fading. The system model consists of many independent transmitters who have to communicate with a large number of receivers via wireless links. The receivers in the system are connected to a wired backbone. The paper presents an upper bound on the per user capacity of the large network which allows for full cooperation...
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