In this paper, we design a heuristic interference-graph-based time division multiple access (IG-TDMA) protocol for underwater acoustic sensor networks (UW-ASNs) to improve the network performance. A general underwater communication scenario is considered for the protocol design, where the communication network topology is modeled as a three-dimensional (3D) scenario and the mobility of sensor nodes is also taken into consideration. In this protocol, we introduce a dynamic and flexible spatial reuse strategy and formulate the interference scenario as a dynamic interference graph according to the nodes' position distribution and a preset interference-free threshold. To achieve high spatial reuse efficiency with low computational complexity, we propose a heuristic interference graph clustering algorithm for the protocol. Simulations verify the performance advantages of our proposed protocol over the carrier sense multiple access with collision avoidance (CSMA/CA) protocol and the traditional TDMA protocol.
|Original language||English (US)|
|Title of host publication||2015 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2015|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||5|
|State||Published - Feb 23 2016|
|Event||IEEE Global Conference on Signal and Information Processing, GlobalSIP 2015 - Orlando, United States|
Duration: Dec 13 2015 → Dec 16 2015
|Name||2015 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2015|
|Other||IEEE Global Conference on Signal and Information Processing, GlobalSIP 2015|
|Period||12/13/15 → 12/16/15|
Bibliographical noteFunding Information:
This work was supported in part by the National Natural Science Foundation of China under Grants 61571020 and 61172105; by the National 973 Project under Grant 2013CB336700; by the National 863 Project under Grants 2014AA01A706 and SS2015AA011306; by the National Natural Science Foundation under Grant CNS-1343189; and by the Major Project from Beijing Municipal Science and Technology Commission under Grant D151100000115004.
- interference graph
- spatial reuse