This paper addresses the issue of achieving energy efficiency in heterogeneous cellular networks (HetNets). The use of sleep control strategy and distance based energy requirement enables us to achieve optimized energy efficiency. The proposed system connects to the problem of heterogeneity and finds solution to the balance in terms of communication distance based energy requirement, the network connects the micro users and the macro users to the same station on the basis of the distance from the concerning station, then an election is started for the nearest station to the user node ignoring the rely networking, the user can be assigned a network with micro users on it, in this case the priority is given to the macro user and the micros are adjusted, this adjustment is marked with reduced density of the micro by switching them off for a concerned period while the macro is in effective fading limit of the micro station.

1. F. Richter, A. J. Fehske, "Traffic demand and energy efficiency in heterogeneous cellular mobile radio network," in Proceedings of the 70th Vehicular Technology Conference, Anchorage, USA, September 2009.
2. G. Fettweis and E. Zimmermann, "ICT energy consumption n - trends and challenges," in Proceedings of the 11th International Symposium on Wireless Personal Multimedia Communications, Lapland, Finland, September 2008.
3. A. Ghosh and H. Eossain ,"Heterogeneous cellular networks From theory to practice," IEEE Communications Magazine, vol. 50, no. 6, pp. 54–64, 2012.
4. M. Haenggi, "Stochastic geometry for wireless networks," Cambridge University Press, 2012.
5. H. Sawy, E. Hossain, and M. Haenggi, "Stochastic geometry for modeling, analysis, and design of multi-tier and cognitive cellular wireless networks: A survey," Communications Surveys & Tutorials, IEEE, vol. 15, no. 3, pp. 996–1019, 2013.
6. J. Andrews, R. Ganti, M. Haenggi, N. Jindal, and S. Weber, "A primer on spatial modeling and analysis in wireless networks," Communications Magazine, IEEE, vol. 48, no. 11, pp. 156–163, 2010.
7. J. Andrews, F. Baccelli, and R. Ganti, "A tractable approach to coverage and rate in cellular networks," Communications, IEEE Transactions on, vol. 59, no. 11, pp. 3122–3134, 2011.
8. H. Dhillon, R. Ganti, F. Baccelli, and J. G. Andrews, "Modeling and analysis of K-tier downlink heterogeneous cellular networks," Selected Areas in Communications, IEEE Journal on, vol. 30, no. 3, pp. 550–560, 2012.
9. S. Mukherjee, "Distribution of downlink SINR in heterogeneous cellular networks," Selected Areas in Communications, IEEE Journal on, vol. 30, no. 3, pp. 575–585, 2012.
10. G. Nigam, P. Minero, and M. Haenggi, "Coordinated multipoint joint transmission in heterogeneous networks," IEEE Transactions on Communications, 2014, submitted. Url: http://www. nd. edu/?mhaenggi/pubs/tcom14. pdf.
11. X. Wang, Yunhao Liu, "A Survey of Green Mobile Networks: Opportunities and Challenges," springer, 2011.
12. Huang, Yu,Xing Zhang, Jiaxin Zhang, Jian Tang, "Energy Efficient Design in Heterogeneous Cellular Networks Based on Large-Scale User Behavior Constraints," (2014): 1-1.
13. Arnold Oliver,Fred Richter, Gerhard Fettweis, Oliver Blume, "Power consumption modeling of different base station types in heterogeneous cellular networks," Future Network and Mobile Summit, 2010. IEEE, 2010.
14. Havinga, Paul JM, and Gerard JM Smit, "Energy?efficient wireless networking for multimedia applications," Wireless Communications and Mobile Computing1. 2 (2001): 165-184.
15. Bhargava, Vijay K. , and A. Leon-Garcia, "Green cellular networks: A survey, some research issues and challenges," Communications (QBSC), 2012 26th Biennial Symposium on. IEEE, 2012.
16. Correia, Luis M, Dietrich Zeller, Oliver Blume, and Dieter Ferling, "Challenges and enabling technologies for energy aware mobile radio networks. " Communications Magazine, IEEE 48. 11 (2010): 66-72.
17. Oh,Eunsung,XinLiu,ZhishengNiu,Bhaskar krishnamachari, "Toward dynamic energy-efficient operation of cellular network infrastructure. " Communications Magazine, IEEE 49. 6 (2011): 56-61.
18. Wu, Gang, Mitsuhiko Mizuno, and Paul JM Havinga, "MIRAI architecture for heterogeneous network," Communications Magazine, IEEE 40. 2 (2002): 126-134.
19. Cavalcanti, Dave, "Issues in integrating cellular networks WLANs, AND MANETs: a futuristic heterogeneous wireless network," Wireless Communications,IEEE 12. 3 (2005): 30-41.
20. Junhai, L. ; Danxia, Y. ; Liu, X. ; Mingyu, "F. A survey of multicast routing protocols for mobile Ad-Hoc networks," IEEE Commun. Surv. Tutor. 2009, 11, 78–91.
21. Striegel, A. ; Manimaran, G, "A survey of QoS multicasting issues," IEEE Commun. Mag. 2002, 40, 82–87.
22. Perkins, D. D; Hughes, H. D," A survey on quality-of-service support for mobile ad hoc networks," WCMC 2002, 2, 503–513.
23. Striegel, A. ; Manimaran, G, "A survey of QoS multicasting issues," IEEE Commun. Mag. 2002, 40, 82–87.
24. Papavassiliou, S. ; An, B, "Supporting multicasting in mobile ad-hoc wireless networks: Issues, challenges, and current protocols," WCMC 2002, 2, 115–130.
25. Hanzo-II. L, Tafazolli. R, "A survey of QoS routing solutions for mobile ad hoc networks," IEEECommun. Surv. Tutor. 2007, 9, 50–70.
26. Masoudifar. M, "A review and performance comparison of QoS multicast routing protocols for MANET," Ad Hoc Netw. 2009, 7, 1150–1155.
27. Mohaisen. M, Wang. Y, "Multiple Antenna Technologies".
28. C. Y. Wong, R. S. Cheng, K. B. Lataief, and R. D. Murch, "Multiuser ofdm with adaptive subcarrier, bit, and power allocation," IEEE J. Sel. Areas Commun. , vol. 17, no. 10, pp. 1747–1758, 1999.
29. A. Radwan and H. Hassanein, "Nxg04-3: Does multi-hop communication extend the battery life of mobile terminals?" in Global Telecommunications Conference, 2006. GLOBECOM'06. IEEE, 2006, pp. 1–5

Heterogeneous Cellular Networks