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Software Implementation and Empirical Evaluation of the HomeMAC: QoS Based MAC Protocol for the Home Network
Won-Joo HWANG Hideki TODE Koso MURAKAMI
IEICE TRANSACTIONS on Communications
Publication Date: 2002/03/01
Print ISSN: 0916-8516
Type of Manuscript: PAPER
home network, QoS, timed token protocol, MAC protocol, HomePNA,
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Progress in the field of broadband access network and information appliances has led to the advent of a new network field called Home Network. In 1999, HomePNA2.0 using phone line was proposed, and we believe that it is one of the most promising solutions because of its cost-effectiveness. However, due to adaptation of the mature IEEE802.3 CSMA/CD technology used for Ethernet, it is not able to guarantee the QoS. We present the design, implementation and empirical evaluation of a new MAC protocol for the Home Network called HomeMAC. In this paper, the software based HomeMAC is implemented by programming the kernel space of FreeBSD. HomeMAC features a hybrid CSMA/CD-Timed Token protocol which combines the CSMA/CD for non-real-time traffic with timed token protocol for real-time traffic. In addition, by providing flexible bandwidth allocation based on QoS Level Table (QLT), HomeMAC can serve high QoS covering the whole offered load. From the results of evaluation of software implementation, we verify that HomeMAC can provide low delay, low loss, and low jitter to the real-time traffic by reservation of the bandwidth.