A model for the service capacity at link layer, for a wireless, link-adaptive system is presented. The model includes imperfections in the adaptation chain (estimation error, estimation delay, acquisition error), and implementation implications (switching hysteresis). Transceiver characteristics and imperfections are independently represented by separate matrices. The dependence of effective capacity Rmacrc on the impairments is discussed using analytical, numerical, and simulation results. Examples show that the above effects should not be neglected in realistic performance analysis at upper layers
Published in:
Wireless Communications, IEEE Transactions on
(Volume:5
,
Issue:
10
)
Date of Publication: Oct. 2006