An SDMA-based MAC protocol for wireless ad hoc networks with smart antennas

Wang, Neng-Chung; Huang, Yu-Chun

doi:10.1016/j.compeleceng.2014.10.013

Cited by 13 publications

(8 citation statements)

References 20 publications

(29 reference statements)

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“…To mitigate this drawback directional antenna [7] system has been introduced. S-MAC [17] is a single-channel directional MAC protocol that uses omnidirectional transmission mode for control packets broadcasting and directional mode for data packet transmission. S-MAC alike protocols [18], [19] prevent deafness problem by transmitting control frame omnidirectionally.…”

Section: Literature Reviewmentioning

confidence: 99%

Cooperation-Based Adaptive and Reliable MAC Design for Multichannel Directional Wireless IoT Networks

et al. 2021

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Internet of Things (IoT) is the ultimate enabler of modern civilization. Cooperative communication in multichannel directional wireless networks is one of the cutting-edge IoT research themes. Typically, cooperation in wireless networks is the opportunistic relaying of data packets for neighboring nodes by idle nodes. Current IoT-based researches related to multichannel with directional antenna introduce the control channel cooperation. But, the iterative phenomenon of negotiation in control channel results in higher communication delay. Hence, to reduce the data transmission delay, cooperation in data relaying need to be used along with control channel cooperation. In this paper, we propose a Cooperation-based Adaptive and Reliable MAC (CAR MAC) Design for Multichannel Directional Wireless IoT Networks that combines both of these cooperation and multichannel directional concepts of cooperation. Multichannel directional hidden terminal problems and deafness problems in medium access are solved using both concepts of cooperation jointly. Besides, multidirectional data packet relaying in the same data channel enables parallel transmission that increases the bandwidth utilization. Moreover, the proposed protocol uses a smart GPS (Global Positioning System) based neighbor discovery. Therefore, the directional position and distance among the IoT-enabled wireless nodes are smartly determined to make the control channel cooperation more informative. The results of extensive simulations reveal that CAR MAC achieves significant improvement in network performances.

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Section: Literature Reviewmentioning

confidence: 99%

Cooperation-Based Adaptive and Reliable MAC Design for Multichannel Directional Wireless IoT Networks

et al. 2021

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“…In the last 15 years, this topic has acknowledged extensive attention essentially as a result of the propagation of mobile communication procedures [32]. Generally, smart antennas are used in fixed wireless communication systems as Wireless Local Loop (WLL) and in mobile wireless communication systems to improve coverage, capacity and spectral efficiency [5,7,8,18,29,39]. Specially, in cellular systems, the use of smart antennas permits lesser cost placements with cells of reasonable enormous size.…”

Section: Brief History Of Smart Antennasmentioning

confidence: 99%

“…The coverage range is merely the range of likely communication between mobile and base station [31]. Its capacity is quantify by the number of users that a system can support in a particular area [1,39,43].…”

Section: Schemes For Coverage and Capacity Enhancement (Scce)mentioning

confidence: 99%

“…The SDMA technology is compatible with most of the air interfaces. Therefore, modern wireless communications systems organize antenna arrays in SDMA configuration [39]. In this situation, at the base station will be an established communication between various users that are active in the cell, when the beams are directed to them and thereby null out any user that want to cause interferences in any form [30,31,53].…”

Section: Spatial Division Multiple Access (Sdma)mentioning

confidence: 99%

See 1 more Smart Citation

Features and Futures of Smart Antennas for Wireless Communications: A Technical Review

Oluwole¹,

Srivastava²

2018

JESTR

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Smart antenna is one of the most proficient and dominant technological innovations for maximizing capacity, improve quality, and coverage in wireless communications system. This work presents relevant comprehensive technical review of research work, unanswered questions, and untried methods on smart antennas technology for wireless communication systems. This also examines most of the significant improvements in the field of smart antennas technologies and the related fields in wireless communication systems. An evaluation of the analytical techniques for the theoretical analysis of adaptive beamforming algorithm, level of the system performance optimization approaches has been highlighted. Performance realistic evaluation and implementation cogent parameters areas for the deployment of smart antennas on the performance system in wireless communication systems have been also examined.

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“…Reference [15] proposes a selective CSMA protocol with cooperative nulling for ad hoc networks, while reference [16] proposes a MAC protocol, called NULLHOC, for adaptive antenna array based WAHNs in multipath environments. Another variant is an ORTS/OCTS/OBDTS-based single-channel non-circular DMAC protocol [17], where OBDTS frame is an omni-directional Beam-Direction-To-Send control frame. It is a space division multiple access (SDMA)-based MAC protocol for WAHNs with smart antennas.…”

Section: Pure Rts/cts-based Single-channel Dmac Protocolsmentioning

confidence: 99%

Directional Medium Access Control (MAC) Protocols in Wireless Ad Hoc and Sensor Networks: A Survey

Wong

Chen

Chin

2015

JSAN

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This survey paper presents the state-of-the-art directional medium access control (MAC) protocols in wireless ad hoc and sensor networks (WAHSNs). The key benefits of directional antennas over omni-directional antennas are longer communication range, less multipath interference, more spatial reuse, more secure communications, higher throughput and reduced latency. However, directional antennas lead to single-/multi-channel directional hidden/exposed terminals, deafness and neighborhood, head-of-line blocking, and MAC-layer capture which need to be overcome. Addressing these problems and benefits for directional antennas to MAC protocols leads to many classes of directional MAC protocols in WAHSNs. These classes of directional MAC protocols presented in this survey paper include single-channel, multi-channel, cooperative and cognitive directional MACs. Single-channel directional MAC protocols can be classified as contention-based or non-contention-based or hybrid-based, while multi-channel directional MAC protocols commonly use a common control channel for control packets/tones and one or more data channels for directional data transmissions. Cooperative directional MAC protocols improve throughput in WAHSNs via directional multi-rate/single-relay/multiple-relay/two frequency channels/polarization, while cognitive directional MAC protocols leverage on conventional directional MAC protocols with new twists to address dynamic spectrum access. All of these directional MAC protocols are the pillars for the design of future directional MAC protocols in WAHSNs.

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An SDMA-based MAC protocol for wireless ad hoc networks with smart antennas

Cited by 13 publications

References 20 publications

Cooperation-Based Adaptive and Reliable MAC Design for Multichannel Directional Wireless IoT Networks

Cooperation-Based Adaptive and Reliable MAC Design for Multichannel Directional Wireless IoT Networks

Features and Futures of Smart Antennas for Wireless Communications: A Technical Review

Directional Medium Access Control (MAC) Protocols in Wireless Ad Hoc and Sensor Networks: A Survey

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