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| Content Provider | ACM Digital Library |
|---|---|
| Author | Tseng, Hsueh-Wen Chuang, Yue-Ru |
| Abstract | In IEEE 802.15.4 wireless personal area networks (WPANs), the reliable data transmission is one of important issues such as the body information for medical treatments. Some handshaking mechanisms in literatures were studied and proposed to guarantee successful frame transmission. One of handshaking mechanisms adopts ACK frame, which is replied by the receiver back to the sender when the data frame is correctly received. This is a popular mechanism. However, there are many different reasons causing data frames which cannot be correctly received on the receiver such as the fading channel, data frame collision and hidden terminal problem and so on. Therefore, a sender should have different data retransmission policies and procedures. Neglecting these reasons of failed transmission, the retransmission frame may fail again, and the transmission efficiency will be degraded. In this paper, we propose a cross-layer judgment scheme to solve the retransmission problem. It does not require the cost of extra control overhead, but it can judge correctly the reasons of failed transmission from overlapped signals. Thus, the sender can adjust adaptive system parameters to handle the retransmission procedure. Simulation results demonstrate that the proposed scheme can effectively improve the transmission efficiency. |
| Starting Page | 197 |
| Ending Page | 202 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781450314923 |
| DOI | 10.1145/2401603.2401648 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2012-10-23 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Ieee 802.15.4 Handshaking mechanism Cross-layer design Retransmission problem |
| Content Type | Text |
| Resource Type | Article |
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