Energy-scalable OFDM transmitter design and control

被引：13
|
作者：
Debaillie, Bjorn
Bougard, Bruno
Lenoir, Gregory
Vandersteen, Gerd
Catthoor, Francky
机构：
[1] IMEC, B-3001 Louvain, Belgium
[2] Free Univ Brussels, Dept ELEC, B-1050 Brussels, Belgium
来源：
43RD DESIGN AUTOMATION CONFERENCE, PROCEEDINGS 2006 | 2006年
关键词：
design; measurement; performance; theory; OFDM; energy management; energy-aware design; energy-scalability;
D O I：
10.1109/DAC.2006.229288
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Orthogonal Frequency Division Multiplexing (OFDM) is the modulation of choice for broadband wireless communications. Unfortunately, it comes at the cost of a very low energy efficiency of the analog transmitter. Numerous circuit-level and signal processing techniques have been proposed to improve that energy efficiency. However more disruptive improvement can be achieved at system-level, capitalizing on energy-scalable design and circuit reconfiguration to match the user requirements and operation environment. We describe the design of such an energy-scalable reconfigurable transmitter as well as its control strategy. Based on measurement carried out on the physical realization of this transmitter, the benefit of system-level energy management is shown. Energy-efficiency scalability ranges over 30%, which translates in an average system-level energy improvement of up to 40% compared to a non-scalable system.
引用
收藏
页码：536 / 541
页数：6
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