Issue No. 01 - January/February (1997 vol. 17)
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/40.566198
Current wireless LANs that are small enough for portable computing devices have transmission rates up to a few Mbit/s, at the lower end of that obtained in IEEE 802-compliant wired LANs. These LANs can provide a useful service when the application demands and number of users are kept low. Much higher performance, from several 10's of Mbit/s to over 100 Mbit/s, is needed to accommodate more users and multimedia traffic. This paper proposes a radio solution at millimetre wavelength frequencies where there is sufficient spectrum to accommodate link speeds of hundreds-of-megabits-per-second. Using a test-bed with a burst-mode transmission capability and experimental 40 GHz radio, we have demonstrated a pico-cellular approach with a range of approximately 10 metres and link rates up to 185 Mbit/s. Additionally, we have built a prototype modem with a raw link rate of 54 Mbit/s for use in a demonstrator high-speed indoor WLAN. This paper presents the architecture of the proposed WLAN and the design and performance of the prototype modem. Section 2 discusses key design decisions that follow from the choice of spectrum and propagation characteristics in the millimetre-wave band. Section 3 describes the overall WLAN system architecture. Section 4 describes the prototype modem implementation and performance.
Communications, local-area network design, wireless networks, mm-wave band, modems
D. J. Skellern et al., "A High-Speed Wireless LAN," in IEEE Micro, vol. 17, no. , pp. 40-47, 1997.