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EFFICIENT MAC PROTOCOL DESIGN FOR WIRELESS SENSOR NETWORKS
https://ir.soken.ac.jp/records/3591
https://ir.soken.ac.jp/records/3591d630e0b2-7a31-4b6d-8ba0-2618af7c9ee0
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要旨・審査要旨 (223.5 kB)
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本文 (1.8 MB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||
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| 公開日 | 2013-06-14 | |||||
| タイトル | ||||||
| タイトル | EFFICIENT MAC PROTOCOL DESIGN FOR WIRELESS SENSOR NETWORKS | |||||
| タイトル | ||||||
| タイトル | EFFICIENT MAC PROTOCOL DESIGN FOR WIRELESS SENSOR NETWORKS | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_46ec | |||||
| 資源タイプ | thesis | |||||
| 著者名 |
NGUYEN, Kien
× NGUYEN, Kien |
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| フリガナ |
グエン, キエン
× グエン, キエン |
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| 著者 |
NGUYEN, Kien
× NGUYEN, Kien |
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| 学位授与機関 | ||||||
| 学位授与機関名 | 総合研究大学院大学 | |||||
| 学位名 | ||||||
| 学位名 | 博士（情報学） | |||||
| 学位記番号 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 総研大甲第1557号 | |||||
| 研究科 | ||||||
| 値 | 複合科学研究科 | |||||
| 専攻 | ||||||
| 値 | 17 情報学専攻 | |||||
| 学位授与年月日 | ||||||
| 学位授与年月日 | 2012-09-28 | |||||
| 学位授与年度 | ||||||
| 値 | 2012 | |||||
| 要旨 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | The past two decades have seen increasing interests in the field of wireless sensor networks (WSNs), which have potential applications covering all aspects of the human life. The major issue in WSNs is power conservation since wireless sensors are usually battery-powered. In a typical sensor node, the wireless interface consumes the largest share of the power budget. Hence, an energy efficient medium access control (MAC) protocol is vital. The MAC protocol always adopts the duty cycling mechanism to reduce idle listening, which is the most significant energy wastage. The mechanism, however, has negative effects on latency and throughput performance. Meanwhile, an increasing number of prospective applications not only imposes requirements on energy efficiency but also on other Quality of Services (QoS) parameters. Therefore, it is great of importance to design new efficient MAC protocols, which meet the energy efficiency and QoS requirements. We first focus on designing energy efficient, low latency MAC protocols for low data rate WSNs. The traditional approach is letting a duty cycling MAC protocol forward packets via multiple hops in a cycle, i.e., the multi-hop MAC. However, the original multi-hop MAC protocol incurs a large control overhead, and a so-called long listening period problem. We propose a low latency, low control overhead MAC protocol (the LO-MAC), which overcomes the mentioned disadvantages by exploiting the physical properties of wireless channel. LO- MAC introduces a new traffic adaptive scheme based on carrier sensing characteristics. The scheme effectively controls the length of listening period following the traffic load. Moreover, LO-MAC takes full advantages of the broadcast nature and lets a packet containing diffierent meanings during its transmission. Therefore, the number of transmitting packets and the control overhead is significantly reduced. Secondly, we introduce an approach in designing efficient MAC protocols for dynamic load environments. We propose MAC2 protocol, a novel Multi-hop Adaptive MAC protocol with packet Concatenation. MAC2 achieves a better performance than a state-of-the-art protocol in terms of energy efficiency, low latency and high throughput. The proposed protocol controls the adaptation to the traffic load by combining a signalling traffic adaptive scheme and a demand wakeup manner. The scheme and the manner are based on a synchronization process and a proportional mapping function, respectively. Besides that, the protocol has a concatenation scheme, which concatenates several queued packets into a bigger one before sending out of a node. The concatenation scheme reduces not only the control overhead but also the average latency. Additionally, MAC2 is numerically optimized to achieve minimum latency and guarantee no data transmission collision. Finally, we also target the dynamic load environments, but take an asynchronous approach of the efficient MAC design. We propose an Asynchronous MAC protocol with QoS awareness (the AQ-MAC), which is energy efficient and provides different QoS levels to relevant types of traffic. AQ-MAC achieves energy efficiency and collision avoidance by utilizing a receiver- initiated transmission and the concatenation scheme derived from MAC2. Moreover, AQ- MAC adopts the diffierentiate service (DiffServ) model to provide QoS. Data packets are provided diffierent transmission strategies depending on their levels of importance. |
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| 値 | 有 | |||||
