Greening the copper access network with dynamic spectrum management Online publication date: Thu, 30-Sep-2010
by John M. Cioffi, Hao Zou, Aakanksha Chowdhery, Sumanth Jagannathan, Wooyul Lee
International Journal of Autonomous and Adaptive Communications Systems (IJAACS), Vol. 3, No. 4, 2010
Abstract: This paper investigates the benefits of dynamic spectrum management (DSM) in terms of reducing the power consumption and improving the data rates and robustness in digital subscriber line (DSL) networks. Non-DSM solutions cause strong interference in a shared DSL binder and lead to instability in the network. However, DSM mitigates such interference, stabilises DSL service, and saves power consumed by the DSL networks. This paper compares the savings in power and the improvement in data rates and robustness of the DSL networks when the proposed DSM methods are used instead of other non-DSM techniques. The power savings, data rate increase and quality-of-service improvement by DSM make the operation of DSL networks greener and more efficient, which in turn reduces operational expenditure and brings higher customer satisfaction for DSL service providers.
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