1. Introduction
This paper investigates two cost-effective options for providing in-home networks. One is the wireless LAN based on the IEEE 802.11b standard [1], [3], [5]. The other uses the existing low-voltage (110/220 V.) power lines for communication [7], [9] based on the HomePlug Powerline Alliance's HomePlug 1.0 Standard, which enables one to establish an Ethernet-class network over these lines [6].