Non-Coherent Multipath Fading Relay Networks in the Wideband Regime

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Non-Coherent Multipath Fading Relay Networks in
the Wideband Regime Fawaz, Medard

• Achievable rate in non-coherent multipath fading
  relay channel
• coincides with generalized block-Markov lower
  bound of AWGN-FD channel -gt LB
• coincides with cut-set upper-bound for
  -gt Capacity
• Non-coherent peaky frequency binning scheme
• Min-cut on hypergraph model

• MAIN ACHIEVEMENT
• HOW IT WORKS
• Source Low-duty cycle peaky FSK signaling
• Relay Decode, Frequency Binning and Forward

Capacity of general relay channel
unknown Bounds on general relay channel
Bounds on AWGN relay channel
Wideband regime not interference-limited,
but energy-limited point-to-point Hypergraph
Model min-cut on hypergraph
Extension to larger networks multiple relays,
layers... Open question closing the gap to
Cut-set UB? Virtual MIMO gain in the wideband
regime?
Towards characterizing the capacity of the
building block of MANETs
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