1. Cianca, E., De Sanctis, M., & Ruggieri, M. (2005). Convergence towards 4g: A novel view of integration. Wireless Personal Communications, 33, 327–336.
2. Wang, X. (2005). OFDM and its application to 4G. in 14th Annual International Conference on Wireless and Optical Communications, WOCC, p. 69.
3. Chen, L., & Ze-yao, H. (2008). OFDM—main technology of 4G mobile communication system. Computer TechNology & Development, 3.
4. Anastasi, G., Grillo, D., & Lenzini, LuciaNo. (1997). An access protocol for speech/data/video integration in TDMA-based advanced mobile systems. IEEE Journal on Selected Areas in Communications, 15(8), 1498–1510.
5. Masui, H., Ohgoshi, Y., YaNo, T., & Doi, N. (2001). U.S. patent no. 6,269,088. U.S. Patent and Trademark Office.