Kk. Leung et A. Srivastava, Dynamic allocation of downlink and uplink resource for broadband services in fixed wireless networks, IEEE J SEL, 17(5), 1999, pp. 990-1006
We propose and analyze a resource allocation algorithm, referred to as the
enhanced staggered resource allocation (ESRA) method, for fixed broadband w
ireless networks with directional antennas at base stations and terminals.
The new method is based on the staggered resource allocation (SRA) algorith
m with consideration of reception quality at terminals. Terminals are categ
orized into multiple classes, depending on their ability to tolerate concur
rent packet transmissions. The purpose of the ESRA method is to maximize co
ncurrent transmissions up to an extent tolerable by the receiving terminals
for throughput improvement, while avoiding major cochannel interference in
the networks where frequency is reused very aggressively, For practical ra
dio parameters, the ESRA method provides 98.69% coverage and yields a maxim
um downlink throughput of 36.10% per sector while meeting a 15 dB signal-to
-interference ratio (SIR), As for the uplink, using full power control, the
throughput reaches 16.7% per sector with a packet loss probability of less
than 5 x 10(-4). The high ESRA throughput translates into a very large net
work capacity, and the high quality of service reveals that the new method
can support real-time traffic such as voice and video, as expected in futur
e broadband multimedia services in fixed wireless networks.