Maximum Stable Throughput of Network-Coded Multiple Broadcast Sessions for WirelessTandem Random Access Networks

Amerimehr, Mohammad H.; Ashtiani, Farid; Valaee, Shahrokh

doi:10.1109/tmc.2013.2296502

Cited by 7 publications

(1 citation statement)

References 27 publications

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“…The sender and relays scatter the bits of these protected coded blocks on "good" bit positions and the rest on "bad" bit positions. Amerimehr et al [22] investigated the throughput gain of inter-flow network coding over a non-coding scheme on multicast sessions in multi-hop wireless networks. They also defined a new metric, network unbalance ratio, which identifies the amount of unbalance instability among nodes.…”

Section: Related Workmentioning

confidence: 99%

CoFi: Coding-Assisted File Distribution over a Wireless LAN

Diao

2019

Symmetry

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The wireless channel is volatile in nature, due to various signal attenuation factors including path-loss, shadowing, and multipath fading. Existing media access control (MAC) protocols, such as the widely adopted 802.11 wireless fidelity (Wi-Fi) family, advocate masking harsh channel conditions with persistent retransmission and backoff, in order to provide a packet-level best-effort service. However, the asymmetry of the network environment of client nodes in space is not fully considered in the method, which leads to the decline of the transmission efficiency of the good ones. In this paper, we propose CoFi, a coding-assisted file distribution protocol for 802.11 based wireless local area networks (LANs). CoFi groups data into batches and transmits a random linear combination of packets within each batch, thereby reducing redundant packet and acknowledgement (ACK) retransmissions when the channel is lossy. In addition, CoFi adopts a MAC layer caching scheme that allows clients to store the overheard coded packets and use such cached packets to assist nearby peers. With this measure, it further improves the effective throughput and shortens the buffering delay when running applications such as bulk data transmission and video streaming. Our trace based simulation demonstrates that CoFi can maintain a similar level of packet delay to 802.11, but increases the throughput performance by a significant margin in a lossy wireless LAN. Furthermore, we perform a reverse-engineering on CoFi and 802.11 using a simple analytical framework, proving that they asymptotically approach different fairness measures, thus resulting in a disparate performance.

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Section: Related Workmentioning

confidence: 99%

CoFi: Coding-Assisted File Distribution over a Wireless LAN

Diao

2019

Symmetry

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Throughput Analysis of Network Coding in Multi-Hop Wireless Mesh Networks Using Queueing Theory

Kafaie

Ahmed

Chen

et al. 2016

2016 IEEE Global Communications Conference (GLOBECOM)

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In recent years, a significant amount of research has been conducted to explore the benefits of network coding in different scenarios, from both theoretical and simulation perspectives. In this paper, we utilize queueing theory to propose an analytical framework for bidirectional unicast flows in multihop wireless mesh networks, and study throughput of interflow network coding. We analytically determine performance metrics such as the probability of successful transmission in terms of collision probability, and feedback mechanism and retransmission. Regarding the coding process, our model uses a multi-class queueing network where coded packets are separated from native packets and have a non-preemptive higher priority over native packets, and both queues are in a stable state. Finally, we use simulations to verify the accuracy of our analytical model.

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Queue Stability Analysis in Network Coded Wireless Multicast Network

Moghadam

2016

IEEE Commun. Lett.

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Maximum Stable Throughput of Network-Coded Multiple Broadcast Sessions for WirelessTandem Random Access Networks

Cited by 7 publications

References 27 publications

CoFi: Coding-Assisted File Distribution over a Wireless LAN

CoFi: Coding-Assisted File Distribution over a Wireless LAN

Throughput Analysis of Network Coding in Multi-Hop Wireless Mesh Networks Using Queueing Theory

Queue Stability Analysis in Network Coded Wireless Multicast Network

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