Unsaturated Throughput Analysis of Physical-Layer Network Coding Based on IEEE 802.11 Distributed Coordination Function

Lin, Shijun; Fu, Liqun

doi:10.1109/twc.2013.092513.121778

Cited by 11 publications

(9 citation statements)

References 28 publications

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“…5 The collision probability is independent and constant, regardless of the number of failed transmissions. The error from control frame, PHY header and MAC header is not considered because they are transmitted at the basic rate and have smaller size than the aggregated frame body.…”

Section: Algorithm Descriptionmentioning

confidence: 99%

Performance analysis of IEEE 802.11n network under unsaturated conditions

Lang

2017

Mod. Phys. Lett. B

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Frame aggregation is the most important medium access control (MAC) enhancement of IEEE 802.11n. In frame aggregation, multiple frames are encapsulated into a single frame. In the analysis of 802.11n performance, the existing researches assumed that each station always had a packet for transmission. But actually, sometimes stations may have no packet to transmit. In this paper, we develop an analytical model for IEEE 802.11n in unsaturated conditions. Therefore, the transmission of the station is assumed to be a bulk service queue system. Bulk size is aggregation size. According to the 802.11n standard, when the number of packets in the buffer is smaller than the aggregation size, we can also transmit all the packets in the buffer using A-MPDU. Therefore, bulk size is variable. The throughput and mean access delay are achieved. Numerical results show that the proposed algorithm can effectively increase the throughput and lower the access delay.

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Section: Algorithm Descriptionmentioning

confidence: 99%

Performance analysis of IEEE 802.11n network under unsaturated conditions

Lang

2017

Mod. Phys. Lett. B

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“…Particularly, in the second equations, the two terms indicate that there are two possible auxiliary states regarding each of the queues to give non-zero projected and combined transitions. The third and fourth equations of (6) and (7) are the special case of the second equations where one or both of the queues are full.…”

Section: Stationary Probabilities Of the Projected Markov Modelmentioning

confidence: 99%

“…However, many existing works on MAC-NC assumed infinite relay buffers [1,[3][4][5][6]. Other works made simplifications by either omitting the signalling or assuming loss-free wireless channels [7][8][9][10]. Analytic models so far developed were also built on these assumptions or simplifications [10,11].…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of two‐way MAC layer network coding under finite relay buffer and non‐negligible signalling overhead

Shi

Liu

et al. 2016

Wireless Communications

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Two-way exclusive OR (XOR) relay can enable hidden nodes to exchange data with low delays and high data rate, while keeping signal processing simple. In this paper, we analyse practical two-way XOR relaying systems, where finite relay buffer, non-negligible signalling overhead, and lossy wireless channels are all captured. A two-layer model is developed to characterise such practical two-way relay systems, which is then reformulated into a Markov process after we project and combine inter-layer state transitions of the two-layer model. Using Markov techniques, we evaluate the steady state probabilities of the Markov process and, in turn, the key performance measures of two-way XOR relaying, such as throughput, delay, and packet loss. The accuracy of our model is validated by simulations. Our model can also be used as an online tool to configure the buffer resources, adapting to wireless channel conditions and signalling requirements.

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“…The performance of PNC coordinated with distributed MAC protocols was first studied in . However, they assumed that the network is an all‐inclusive carrier sensing network in which all nodes can carrier sense each other.…”

Section: Introductionmentioning

confidence: 99%

“…The performance of PNC coordinated with distributed MAC protocols was first studied in [15]. However, they assumed that the network is an all-inclusive carrier sensing (1) We consider six link-to-link interference cases in PNC network, and derive a sufficient CSR that prevents the mutual interference for each case.…”

Section: Introductionmentioning

confidence: 99%

Carrier sensing range analysis in a general IEEE 802.11 network with physical‐layer network coding

Lin

Shi

2014

Wireless Communications

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In this paper, we investigate the carrier sensing range (CSR) of a general 802.11 network with physical‐layer network coding (PNC). We aim to derive a sufficient CSR that can prevent the hidden‐node collisions in a general 802.11 PNC network. The analysis includes two steps. First, we analyze the six link‐to‐link interference cases in an 802.11 PNC network to show that the mutual interference will be most severe when each node in the network initiates a two‐hop end node link. Second, we consider the worst interference case that all concurrently transmitting links in the network are two‐hop end node links and placed in the densest manner and develop a closed‐form expression of a sufficient CSR that prevents the hidden‐node collisions in a PNC network. From the analysis results, we find that to prevent the hidden‐node collisions, the CSR in PNC network should be bigger than the one in traditional non‐network‐coding network. Furthermore, we carry out extensive simulations to find out the throughput gain of PNC scheme in a general wireless network when considering the impact of CSR. Simulation results show that compared with the non‐network‐coding scheme, PNC scheme has throughput gain when a large proportion (i.e., 90%) of links in the network are two‐hop links and the link density has little effect on the throughput gain of PNC scheme. Copyright © 2014 John Wiley & Sons, Ltd.

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Unsaturated Throughput Analysis of Physical-Layer Network Coding Based on IEEE 802.11 Distributed Coordination Function

Cited by 11 publications

References 28 publications

Performance analysis of IEEE 802.11n network under unsaturated conditions

Performance analysis of IEEE 802.11n network under unsaturated conditions

Performance analysis of two‐way MAC layer network coding under finite relay buffer and non‐negligible signalling overhead

Carrier sensing range analysis in a general IEEE 802.11 network with physical‐layer network coding

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