Research and development of efficient and reliable bidirectional communication protocols for wireless sensor networks

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K00124
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Information network
• Research Institution: Kobe University
• Principal Investigator: Ohta Chikara 神戸大学, 科学技術イノベーション研究科, 教授 (10272254)
• Co-Investigator(Kenkyū-buntansha): 高木 由美 神戸大学, システム情報学研究科, 助手 (70314507)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: センサネットワーク / 双方向通信 / ネットワーク符号化 / パッシブアック

Outline of Final Research Achievements

In multi-hop wireless sensor networks based on carrier-sense multiple access, there is a problem that throughput is lowered in bidirectional communication due to packet collision and packet retransmission caused by a hidden terminal problem. In this research, in order to realize highly efficient and reliable packet transmission in a bidirectional communication environment, IFNC (Inter-flow Network Coding with Passive ACK), which combines IFNC (Inter-flow Network Coding) and Passive ACK), was developed. We examined the control parameter optimization of encoding latency and passive ACK collision avoidance mechanisms in order to improve the performance of IFNCPA. Computer simulations revealed that IFNCPA is effective from the viewpoint of collection ratio and end-to-end delay.

Free Research Field

情報ネットワーク