1. International Telecommunications Union The World Telecommunication/ICT Indicators Database 2007
2. A. Amanna Wireless@Virginia Tech
3. Huawei Technologies Co., Ltd Improving Energy Efficiency, Lower CO 2 Emission and TCO 2009
4. The Linearity Efficiency Compromise;Lavrador;IEEE Microw. Mag.,2010
5. Power Amplifiers and Transmitters for RF and Microwave;Raab;IEEE Trans. Microw. Theory Techniq.,2002