1. Ali, A., Hamouda, W., & Uysal, M. (2015). Next generation M2M cellular networks: Challenges and practical considerations. IEEE Communications Magazine, 53, 18–24.
2. Jiafu, W., Di, L., Caifeng, Z., & Keliang, Z. (2012). M2M communications for smart city: An event-based architecture. In IEEE 12th international conference on computer and information technology (CIT) (pp. 895–900).
3. Rajandekar, A., & Sikdar, B. (2015). On the feasibility of using WiFi white spaces for opportunistic M2M communications. IEEE Wireless Communications Letters, 4, 681–684.
4. Jo, M., Maksymyuk, T., Batista, R. L., Maciel, T. F., de Almeida, A. L., & Klymash, M. (2014). A survey of converging solutions for heterogeneous mobile networks. IEEE Wireless Communications, 21, 54–62.
5. Verma, P. K., Verma, R., Prakash, A., Agrawal, A., Naik, K., Tripathi, R., et al. (2016). Machine-to-machine (M2M) communications: A survey. Journal of Network and Computer Applications, 66, 83–105.