Topology control vector based forwarding algorithm for underwater acoustic networks

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Mühendislik Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümü, Türkiye

Tezin Onay Tarihi: 2015

Öğrenci: İLKAY YAZGI

Danışman: BUYURMAN BAYKAL

Özet:

The communication range of underwater acoustic sensor networks (UASN) is limited by the underwater environment. Acoustic networks with huge number of sensors may have long communication range with appropriate protocols in literature. On the other hand, especially, the networks including small number of nodes have communication problems for long ranges. To challenge this problem, topology control in underwater acoustic networks is a promising solution. In this study, a novel approach, Topology Control Vector Based Forwarding Protocol (TC-VBF) is introduced and developed. In the TC-VBF, when the communication with source node and target node becomes a problem due to range, the actor node will help the packet transfer. The actor node is moving to the mid-point of the distance between master node and sink node. When the packet transfer is successfully finished, the actor node moves back to previous position. Existing MAC, transport and routing protocols and topology control algorithms are classified and analyzed. A novel algorithm, TC-VBF, is presented and evaluated comparatively with alternative routing protocols. It shows better performance for reliable data transfer and long communication range.