Dual Busy Tone Multiple Access (DBTMA): A new medium access control for packet radio networks

被引：54

作者：

Deng, J ^{[1
]}

Haas, ZJ ^{[1
]}

机构：

[1] Cornell Univ, Sch Elect Engn, Ithaca, NY 14853 USA

来源：

ICUPC '98 - IEEE 1998 INTERNATIONAL CONFERENCE ON UNIVERSAL PERSONAL COMMUNICATIONS, VOLS 1 AND 2 | 1998年 / 1-2卷

关键词：

D O I：

10.1109/ICUPC.1998.733652

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In packet radio networks, hidden terminal problem and exposed terminal problem can severely reduce the utilization of a Medium Access Control (MAC) protocols. To avoid these problems, RTS/CTS-based schemes were proposed. However, as shown in this paper, utilization of these schemes is still degraded, especially in the cases in which the propagation and the transmission delays are long. We propose here a new MAC protocol, termed the Dual Busy Tone Multiple Access (DBTMA), and we evaluate its performance. In DBTMA, two busy tones are used to separate the use of the forward and the reverse communication directions. Our simulations show that the network utilization of DBTMA is about twice as that of RTS/CTS-based schemes. We also discuss the effect of nodal mobility on the network utilization in packet radio networks, concluding that it is negligible under normal operational conditions.

引用

页码：973 / 977

页数：5