Title :
OSU-MAC: a new, real-time medium access control protocol for wireless WANs with asymmetric wireless links
Author :
Liu, Chunlei ; Ge, Ye ; Fitz, Mike ; Hou, Jennifer ; Chen, Wei-Peng ; Jain, Raj
Author_Institution :
Dept. of Comput. & Inf. Sci., Ohio State Univ., Columbus, OH, USA
Abstract :
In this paper, we document our design of a MAC protocol, called OSU-MAC, subject to the physical layer characteristics and constraints of a narrow-band wireless modem testbed currently being built at the Ohio State University. The narrow-band wireless modem testbed is expected to support both real-time (bus location tracking) and non-real-time (regular) data applications. A number of techniques are proposed to support QoS imposed by the real-time applications, to deal with the asymmetry on the forward and reverse channels and the half-duplex transmission constraint imposed by the physical layer, and to enhance the error control capability of OSU-MAC. We also present simulation results to demonstrate the key functional characteristics of OSU-MAC
Keywords :
access protocols; quality of service; wide area networks; wireless LAN; OSU-MAC; QoS; asymmetric wireless links; constraints; error control capability; half-duplex transmission constraint; key functional characteristics; physical layer characteristics; real-time medium access control protocol; simulation results; wireless WANs; wireless modem testbed; Access protocols; Media Access Protocol; Modems; Narrowband; Physical layer; Quality of service; Real time systems; Testing; Wide area networks; Wireless application protocol;
Conference_Titel :
Distributed Computing Systems, 2001. 21st International Conference on.
Conference_Location :
Mesa, AZ
Print_ISBN :
0-7695-1077-9
DOI :
10.1109/ICDSC.2001.918984
