Throughput/Reliability Tradeoffs in Spread Spectrum Multi-Hop Ad-Hoc Wireless Networks with Multi-Packet Detection

Truhachev, Dmitri; Nagaraj, S. V.; Schlegel, Christian

doi:10.1109/icc.2009.5199529

Cited by 4 publications

(2 citation statements)

References 11 publications

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“…Similarly, it can be shown that P [T suc = T min suc + xδ] = nβ(1−β) n−1 (1−β) (x−1)(n−1) (n−1)β(1−β) n−2 1−(1−β) n , for 1 ≤ x ≤ λ − 1.Summing over x yields the desired expression in(9).…”

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confidence: 86%

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Acknowledgement-aware MPR MAC protocol for distributed WLANs: Design and analysis

Mukhopadhyay

Mehta

2012

2012 IEEE Global Communications Conference (GLOBECOM)

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Multi-packet reception (MPR), in which a receiver can decode multiple simultaneous transmissions, significantly improves the uplink throughput of wireless local area networks (WLANs). However, the medium access control (MAC) layer must be redesigned to encourage, and not avoid, simultaneous transmissions. Asynchronous MPR MAC protocols, in which nodes independently access the channel so long as the number of ongoing transmissions is less than a threshold, are promising solutions for enabling MPR in IEEE 802.11-based WLANs. In this paper, we highlight the problem of acknowledgment (ACK) delays that arises in asynchronous MPR when multiple nodes transmit in succession without the channel becoming idle. We propose a novel asynchronous MAC protocol that reduces the ACK delays, increases throughput, and retains the distributed nature of the 802.11 distributed coordination function (DCF). An accurate renewal theoretic fixed-point analysis that leads to general analytical expressions for the saturation throughput is also developed.

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confidence: 86%

“…This capability has been referred to as multi-packet reception (MPR) in the literature [5]- [9]. MPR promises significant throughput gains in the uplink, i.e., the link from the stations to the access point (AP) [10].…”

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confidence: 99%

Acknowledgement-aware MPR MAC protocol for distributed WLANs: Design and analysis

Mukhopadhyay

Mehta

2012

2012 IEEE Global Communications Conference (GLOBECOM)

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Multi-stream information transmission over K-user interference networks

Truhachev

2010

2010 Information Theory and Applications Workshop (ITA)

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Abstract-In this paper, communication over K-user interference networks is discussed. Each user encodes information as a number of redundant binary data streams which are concurrently transmitted over the channel at various power levels. The reception is performed in two stages: in the first stage, the data streams are separated by an iterative detector; they are individually error-control decoded in the second stage. Conditions for decoding convergence in terms of the density of data streams per power level are formulated. The technique is illustrated through the use of several examples, including one-tomany and many-to-one interference channels. It is proven that optimal degrees of freedom can be achieved for a number of interference channels and channel parameters.

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Multi-packet communication by spatial reuse: Application scenarios and open research issues

Babich

Comisso

2013

2013 9th International Wireless Communications and Mobile Computing Conference (IWCMC)

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Throughput/Reliability Tradeoffs in Spread Spectrum Multi-Hop Ad-Hoc Wireless Networks with Multi-Packet Detection

Cited by 4 publications

References 11 publications

Acknowledgement-aware MPR MAC protocol for distributed WLANs: Design and analysis

Acknowledgement-aware MPR MAC protocol for distributed WLANs: Design and analysis

Multi-stream information transmission over K-user interference networks

Multi-packet communication by spatial reuse: Application scenarios and open research issues

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