Framework for Combined Optimization of DLC and Physical Layer in Mobile OFDM Systems
James Gross, Frank H. P. Fitzek, Adam Wolisz, Bing Chen, Rainer Gruenheid · 2001
Wide-band mobile communication sys- tems are based on the Orthogonal Frequency Division Multiplexing (OFDM) transmission technique for several reasons (1). The objective of this paper is the design of flexible Data Link Control (DLC) protocols, which combine the information of the time variant radio chan- nel (described by the channel transfer function) and the incoming data streams from different applications with both, constant and variable data rates. The goal is to ful- fil the quality of service (QoS) requirements in terms of priority and throughput for all wireless terminals and to improve the average system throughput.