A time-adaptive dynamic spectrum allocation scheme for a converged cellular and broadcast system
- 1 January 2002
- conference paper
- Published by Institution of Engineering and Technology (IET)
Abstract
The paper describes a scheme that shares an overall block of radio spectrum between two radio access networks, by adapting to time-varying changes in the traffic demand. This is known as dynamic spectrum allocation (DSA). A theoretical value for the spectrum efficiency gain that can be obtained through DSA is derived, for any given traffic patterns for the two networks. This theoretical gain is compared to values obtained through simulations, and four factors are identified that make the DSA performance in practice less than the theoretical values. The effect that each of these factors has on the DSA performance is demonstrated through simulations. This attempts to show how the DSA performance depends on these factors, and what can be done to maximise the potential DSA gains. (6 pages)Keywords
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