Zarikoff, Brad and Malone, David
Dynamics of Contention Free Period Reservation in
IEEE 1901 Networks.
IEEE International Conference on Communications (ICC).
Power line communications (PLC) technology has
become a competitor in the home networking arena. In an internetworked
home, PLC promises to provide an inexpensive, high
throughput, and easy-to-install means of extending connectivity
to areas of the home or small office that have poor wireless
coverage. A key enabling technology within the IEEE 1901 PLC
standard is that of the contention free period (CFP). Following
a successful reservation, a station allocated to the CFP will not
suffer any form of contention-based packet loss. The IEEE 1901
standard presents this as a way of accommodating flows with
well defined delay, jitter and bandwidth requirements. However,
to date there has been little research done on the dynamics
of the CFP reservation procedure and its scalability. Since the
procedure inherently relies on the collision-prone contention
access period for reservations, a successful reservation bid is not
guaranteed on the first attempt. Our work looks at the resulting
delay characteristics of the IEEE 1901 reservation procedure. We
present details for 1-persistent and VoIP traffic.
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