The impact of IEEE 802.11 MAC strategies on multi-hop wireless mesh networks

Kim, Seongkwan; Lee, Sung-Ju; Choi, Sunghyun

doi:10.1109/wimesh.2006.288619

Cited by 17 publications

(10 citation statements)

References 18 publications

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“…The string topology network is one of the simple and fundamental multi-hop network topologies. The string topology multi-hop networks are considered in various applications, such as sensor networks [25], mesh networks [26,27], vehicular ad hoc networks [28], unmanned aerial vehicle networks [29], etc. It is not easy to comprehend the network dynamics of string-topology multi-hop networks.…”

Section: Theoretical Analysis Of Wireless Multi-hop Network Based On ...mentioning

confidence: 99%

Throughput Analysis for Wireless Full-Duplex Multi-Hop Networks with RTS/CTS-Based MAC

et al. 2022

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Medium access control (MAC) protocol operations for in-band full duplex multi-hop networks play an important role in efficient data relaying and throughput enhancement. Knowledge of the relationship between essential operations in MAC protocol for full duplex MAC (FD MAC) networks and network performance is important and useful in terms of the protocol and network design. FD MAC protocols often require exchanging control frames, e.g., request to send/clear to send (RTS/CTS). However, the conventional model cannot analyze the performance of wireless multi-hop networks with RTS/CTS-based FD MAC. Thus, this paper proposes a throughput analysis model for wireless multi-hop networks with RTS/CTS-based FD MAC. The proposed model includes novel “airtime expressions”, which allows us to handle RTS/CTS operations under FD MAC. The proposed model provides the end-to-end throughput of multi-hop networks with RTS/CTS-based FD MAC for any number of hops and any payload size. The validity of the analytical expressions is confirmed through comparisons with simulation results.

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Section: Theoretical Analysis Of Wireless Multi-hop Network Based On ...mentioning

confidence: 99%

Throughput Analysis for Wireless Full-Duplex Multi-Hop Networks with RTS/CTS-Based MAC

et al. 2022

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“…Some papers [13,28,29,39,46] claim that this algorithm, or some variant, would be employed in several commercial devices. Basically, ARF increases the transmission rate when it receives ten consecutive ACKs, and decreases the PHY rate when two sequential losses are seen or a loss occurs just after a rate increment.…”

Section: Automatic Rate Control Algorithmsmentioning

confidence: 99%

Increasing throughput in dense 802.11 networks by automatic rate adaptation improvement

Cardoso

Rezende

2011

Wireless Netw

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Rate control algorithms for commercial 802.11 devices strongly rely on packet losses for their adaptation. As a result, they give poor performance in dense networks because they are not able to distinguish packet losses related to channel error from packet losses due to collision. In this paper, we evaluate automatic rate adaptation algorithms in IEEE 802.11 dense networks. A certain number of works in the literature address this problem, but they demand modifications of the IEEE standard, or depend on some special feature not available in off-the-shelf devices. In this context, we propose a new automatic rate control algorithm which is simple, easy to implement, standards-compliant, and wellsuited for crowded 802.11 networks. Our approach consists of measuring the contention level, inferring the collision probability, and choosing transmission rates which maximize throughput. Results from simulation and real experiments show throughput improvement of up to 100% from our mechanism.

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“…In addition to spatial multiplexing and doubled channel bandwidth, more efficient OFDM with shorter guard interval (GI) and new medium access control (MAC) layer enhancements (e.g. closed-loop rate adaptation [13]) have also contributed to the increased throughput of 802.11n [6].…”

Section: Ieee 80211n Wi-fimentioning

confidence: 99%

Advances in MIMO Techniques for Mobile Communications—A Survey

Khalid¹,

Speidel²

2010

IJCNS

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This paper provides a comprehensive overview of critical developments in the field of multiple-input multiple-output (MIMO) wireless communication systems. The state of the art in single-user MIMO (SU-MIMO) and multiuser MIMO (MU-MIMO) communications is presented, highlighting the key aspects of these technologies. Both open-loop and closed-loop SU-MIMO systems are discussed in this paper with particular emphasis on the data rate maximization aspect of MIMO. A detailed review of various MU-MIMO uplink and downlink techniques then follows, clarifying the underlying concepts and emphasizing the importance of MU-MIMO in cellular communication systems. This paper also touches upon the topic of MU-MIMO capacity as well as the promising convex optimization approaches to MIMO system design.

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The impact of IEEE 802.11 MAC strategies on multi-hop wireless mesh networks

Cited by 17 publications

References 18 publications

Throughput Analysis for Wireless Full-Duplex Multi-Hop Networks with RTS/CTS-Based MAC

Throughput Analysis for Wireless Full-Duplex Multi-Hop Networks with RTS/CTS-Based MAC

Increasing throughput in dense 802.11 networks by automatic rate adaptation improvement

Advances in MIMO Techniques for Mobile Communications—A Survey

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