Cognitive cooperative communications on the Multiple Access Channel

Shimonovich, Jonathan; Baruch, Anelia Somekh; Shamai, Shlomo

doi:10.1109/itw.2013.6691305

Cited by 6 publications

(3 citation statements)

References 14 publications

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“…The decode forward achievable region with strictly-causal cribbing is the area below the thick blue line (see ( 43)). For comparison, the capacity region without cribbing Cnone(N • L) is depicted as the area below the red dashed line (see (45)). The transmission rate of Alice 1 can be significantly higher using cribbing.…”

Section: Bosonic Mac With Strictly-causal Cribbingmentioning

confidence: 99%

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The Quantum Multiple-Access Channel with Cribbing Encoders

Pereg,

Deppe,

Boche

2021

Preprint

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Communication over a quantum multiple-access channel (MAC) with cribbing encoders is considered, whereby Transmitter 2 performs a measurement on a system that is entangled with Transmitter 1. Based on the no-cloning theorem, perfect cribbing is impossible. This leads to the introduction of a MAC model with noisy cribbing. In the causal and non-causal cribbing scenarios, Transmitter 2 performs the measurement before the input of Transmitter 1 is sent through the channel. Hence, Transmitter 2's cribbing may inflict a "state collapse" for Transmitter 1. Achievable regions are derived for each setting. Furthermore, a regularized capacity characterization is established for robust cribbing, i.e. when the cribbing system contains all the information of the channel input. Building on the analogy between the noisy cribbing model and the relay channel, a partial decode-forward region is derived for a quantum MAC with non-robust cribbing. For the classical-quantum MAC with cribbing encoders, the capacity region is determined with perfect cribbing of the classical input, and a cutset region is derived for noisy cribbing. In the special case of a classical-quantum MAC with a deterministic cribbing channel, the inner and outer bounds coincide.

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Section: Bosonic Mac With Strictly-causal Cribbingmentioning

confidence: 99%

“…The MAC with cribbing encoders is closely-related to the relay channel [45,46]. Even in the classical case, the capacity of the relay channel is an open problem.…”

Section: Introductionmentioning

confidence: 99%

The Quantum Multiple-Access Channel with Cribbing Encoders

Pereg,

Deppe,

Boche

2021

Preprint

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“…This is a method already introduced in literature but we exploit IM and channel reuse in such a way to maximize fairness and network capacity. In literature, other works were proposed which focus on channel management for cognitive P2P networks ( [4], [5], [6] or [7]), but in these papers the number of available channels is variable while the bandwidth is always the same, what's more these works focuses or on the inter networks resource sharing or intra networks. In our work we have considered also the bandwidth, which, according to the 802.22 standard, can be equal to 6,7 or 8 MHz.…”

Section: Introductionmentioning

confidence: 99%

A 802.22b protocol for inter/intra WRAN communication

Passiatore¹,

Camarda²

2015

EAI Endorsed Transactions on Context-aware Systems and Applicat

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In this paper we focus on cognitive 802.22b Wireless Regional Area Networks (WRANs). In particular a protocol, named inter intra-resource sharing algorithm (2I-RSA), is presented to address the problem of self coexistence for WRANs and secondary users of the WRAN. The purpose of the proposed resource sharing mechanism is to allow P2P communications avoiding interference among users of the same network or of neighbouring cells, optimizing, at the same time, fairness and network capacity.

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