Utilizing IEEE 802.11n to enhance QoS support in wireless mesh networks

Ashtaiwi, Abduladhim; Hassanein, H.

doi:10.1109/lcn.2008.4664266

Cited by 5 publications

(4 citation statements)

References 7 publications

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“…The advantage of frame aggregation for 802.11ac links was reported by Ong et al [16]. Ashtaiwi and Hassanein studied the performance of frame aggregation in 802.11 mesh networks and proposed a method to adjust aggregation size based on link quality [3]. Gubner and Lindemann investigated video streaming in 802.11 mesh networks, and showed that frame aggregation has positive impact on both the delay and quality of the streamed video [8].…”

Section: Related Workmentioning

confidence: 95%

Potential pitfalls of the message in message mechanism in modern 802.11 networks

Wang

Leong

2014

Proceedings of the 9th ACM International Workshop on Wireless Network Testbeds, Experimental Evaluation and Characterization

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We study the performance impact of the Message in Message (MIM) mechanism in modern 802.11 networks. The MIM mechanism refers to the capability of receiver to abandon an ongoing reception of an 802.11 MAC frame and shift to decode another frame with a higher signal strength. MIM is a common feature in modern 802.11 adapters and it has been shown to improve spatial concurrency. However, our measurement study in a campus WLAN shows that under certain conditions, MIM could cause a throughput degradation of more than 30% when enabled, instead of improving it as expected. With comprehensive experiments using commercial 802.11n adapters, we characterize the impact of MIM for a range of parameters and for different scenarios. We show that a simple adaptive MIM scheme can potentially achieve throughput that is close to the optimal. Our method is practical because it can be easily implemented in existing commodity 802.11 adapters.

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Section: Related Workmentioning

confidence: 95%

Potential pitfalls of the message in message mechanism in modern 802.11 networks

Wang

Leong

2014

Proceedings of the 9th ACM International Workshop on Wireless Network Testbeds, Experimental Evaluation and Characterization

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“…Although wireless backhaul has many attractive features over wired backhaul networks like ATM, T1 or DSL line, it is still lack for high throughput design [3]. Recently, researchers in the field of wireless multihop try to improve its performance using MIMO [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Because Dot11n is in small age, an adoption of the interface to wireless multihop is in its infancy [5] [6]. Some studies concerned about investigating more efficient MIMO-based MAC protocol than the Dot11n's one so as to be suitable for Ad-Hoc and Wireless Mesh Networks [6] [7].…”

Section: Introductionmentioning

confidence: 99%

“…Others concerned about improving IEEE 802.11s performance, an IEEE 802.11 standard for Wireless Mesh Networks (WMN), by using Dot11n based mesh nodes [5]. To do that, the authors in [5] first utilize the variable transmission rate property of Dot11n to find the best PHY data rate related to instantaneous channel quality, then by using this data rate, they find the best MAC aggregation number that guarantees low packet dropping rate, At last, they use theses two settings (PHY rate + MAC aggregation number) to optimally allocate bandwidth to each type of traffic [5].…”

Section: Introductionmentioning

confidence: 99%

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IEEE 802.11n based wireless backhaul enabled by Dual Channel IPT (DCH-IPT) relaying protocol

Mohamed

Kinoshita

Mitsunaga

et al. 2010

International Congress on Ultra Modern Telecommunications and Control Systems

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Wireless backhaul has received much attention as an enabler of future broadband mobile communication systems because it can reduce deployment cost of pico-cells, an essential part of high capacity system. A high throughput with a minimum delay network is highly appreciated to sustain the increasing proliferation in multimedia transmissions. In this research, we propose a backhaul network using the IEEE 802.11n standard in conjunction with the Dual Channel Intermittent Periodic Transmit IPT (DCH-IPT) packets forwarding protocol. By using these two techniques (IEEE 802.11n + DCH-IPT), wireless backhaul nodes can meet more demanding communication requirements such as higher throughput, lower average delay, and lower packet dropping rate than those achieved by adopting IEEE 802.11n to Dual Channel conventionally (DCH-Conv) relayed backhaul, in which packets are transmitted continuously from source nodes, which will accelerate introduction of picocell based mobile communication systems.

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