Name
Title | ||
|---|---|---|
Collision decoding and reporting: A new collision resolution approach using full-duplex radio in WLANs. |
Abstract | ||
|---|---|---|
Full-duplex radio is a next-generation wireless communication technology, because it allows signals to be sent and received simultaneously within the same channel by cancelling self-interference signals. Thus, many full-duplex medium access control (MAC) protocols have been proposed to utilize the full-duplex radio. For backward compatibility with legacy stations (STAs), most of them operate based on the IEEE 802.11 distributed coordination function, which is a competition-based distributed method. Consequently, collisions among STAs are still an important problem in designing a full-duplex MAC protocol. Unlike traditional half-duplex radio, full-duplex radio can sense incoming signals during transmission. Therefore, a novel collision resolution method suitable for the full-duplex radio is required. In this paper, we propose a new collision resolution method called collision decoding and reporting (CDR). In this method, if a collision is detected, each transmitter STA tries to decode another transmitter STA’s frame by cancelling self-interference signals, and memorizes a decoded transmission information. Afterwards, it reports the decoded transmission information to access point (AP) by using its data frame. As a result, the AP knows that another transmitter STA has data to transmit, and offers a transmission opportunity to another transmitter STA without competition. Therefore, the throughput of wireless local area networks increases by reducing competition overheads such as idle back-off slots and collisions. To evaluate the performance of the CDR method, analytical evaluations and simulations have been performed. We observed that the proposed method achieves a throughput gain compared to existing collision resolution methods. |
Year | DOI | Venue |
|---|---|---|
2020 | 10.1016/j.adhoc.2020.102238 | Ad Hoc Networks |
Keywords | DocType | Volume |
Full-duplex,Collision resolution,IEEE 802.11 DCF,MAC protocol | Journal | 106 |
ISSN | Citations | PageRank |
1570-8705 | 0 | 0.34 |
References | Authors | |
0 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Hyeongtae Ahn | 1 | 2 | 2.18 |
| Hyeongwoo Jo | 2 | 0 | 0.34 |
| Young Deok Park | 3 | 4 | 3.47 |
| Seung-Hyun Jeong | 4 | 0 | 0.68 |
| Young-joo Suh | 5 | 478 | 58.07 |