[1] D. Kumar, T.C. Aseri, and R. Patel, EEHC: Energy efficient heterogeneous clustered scheme for wireless sensor networks, Comput. Commun. 32 (2009), no. 4, 662-667.
[2] A.A. Abbasi and M. Younis, A survey on clustering algorithms for wireless sensor networks, Comput. Commun. 30 (2007), no. 15, 2826-2841.
[3] T. Ojha, S. Misra, and N.S. Raghunwanshi, Wireless sensor networks for agriculture: The state‑of‑the‑art in practice and future challenges, Comput. Electron. Agric. 118 (2015), 66-84.
[4] B.D. Deebak and F. Al‑Turjman, A hybrid secure routing and monitoring mechanism in IoT‑based wireless sensor networks, Ad Hoc Networks 97 (2020), Article ID 102022.
[5] J.J. Anaya, E. Talavera, F. Jiménez, F. Serradilla, and J.E. Naranjo, Vehicle to vehicle geo networking using wireless sensor networks, Ad Hoc Networks 27 (2015), 133-146.
[6] A. Milenković, C. Otto, and E. Jovanov, Wireless sensor networks for personal health monitoring: Issues and an implementation, Comput. Commun. 27 (2006), no. 14, 2521-2533.
[7] J. Lu, L. Feng, J. Yang, M.M. Hassan, A. Alelaiwi, and I. Humar, Artificial agent: The fusion of artificial intelligence and a mobile agent for energy‑efficient traffic control in wireless sensor networks, Future Gener. Comput. Syst. 95 (2019), 45-51.
[8] E.S. Nadimi, H.T. Sogaard, T. Bak, and F.W. Oudshoorn, ZigBee‑based wireless sensor networks for monitoring animal presence and pasture time in a strip of new grass, Comput. Electron. Agric. 61 (2008), no. 2, 79-87.
[9] K. Hadi, Analysis of exploiting geographic routing for data aggregation in wireless sensor networks, Procedia Comput. Sci. 151 (2019), 439-446.
[10] M. Younis and K. Akkaya, Strategies and techniques for node placement in wireless sensor networks: A survey, Ad Hoc Networks 6 (2008), no. 4, 621-655.
[11] X. Min, W.-R. Shi, C.-J. Jiang, and Y. Zhang, Energy efficient clustering algorithm for maximizing lifetime of wireless sensor networks, Int. J. Electron. Commun. 64 (2010), no. 4, 289-298.
[12] P. Kuila, S.K. Gupta, and P.K. Jana, A novel evolutionary approach for load balanced clustering problem for wireless sensor networks, Swarm Evol. Comput. 12 (2013), 48-56.
[13] K. Vijayalakshmi and P. Anandan, A multi objective particle swarm optimization for effective cluster head selection in WSN, Cluster Comput. 22 (2019), no. 5, 12275-12282.
[14] W.B. Heinzelman, A.P. Chandrakasan, and H. Balakrishnan, An application‑specific protocol architecture for wireless micro sensor networks, IEEE Trans. Wirel. Commun. 1 (2002), no. 4, 660-670.
[15] S. Mirjalili, Dragonfly algorithm: a new meta‑heuristic optimization technique for solving single‑objective, discrete, and multi‑objective problems, Neural Comput. Appl. 27 (2016), no. 4, 1053-1073.
[16] M. Mafarja, I. Aljarah, A.A. Heidari, H. Faris, P. Fournier‑Viger, X. Li, and S. Mirjalili, Binary dragonfly optimization for feature selection using time‑varying transfer functions, Knowl.‑Based Syst. 161 (2018), 185-204.
[17] P. Kuila and P.K. Jana, A novel differential evolution based clustering algorithm for wireless sensor networks, Appl. Soft Comput. 25 (2014), 414-425.
[18] W.X. Xie, Q.Y. Zhang, Z.M. Sun, and F. Zhang, A clustering routing protocol for WSN based on type‑2 fuzzy logic and ant colony optimization, Wirel. Pers. Commun. 25 (2015), 1165-1196.
[19] V. Sharma and A. Grover, A modified ant colony optimization algorithm for energy efficient wireless sensor networks, Opt. 127 (2016), no. 4, 2169-2172.
[20] B. Zeng and Y. Dong, An improved harmony search based energy‑efficient routing algorithm for wireless sensor networks, Appl. Soft Comput. 41 (2016), 135-147.
[21] P. Singhmann and S. Singh, Improved metaheuristic based energy‑efficient clustering protocol for wireless sensor networks, Eng. Appl. Artif. Intell. 57 (2017), 142-152.
[22] P. Singhmann and S. Singh, Energy efficient clustering protocol based on improved metaheuristic in wireless sensor networks, J. Netw. Comput. Appl. 83 (2017), 40-52.
[23] G.P. Gupta and S. Jha, Integrated clustering and routing protocol for wireless sensor networks using Cuckoo and Harmony Search based metaheuristic techniques, Eng. Appl. Artif. Intell. 68 (2018), 101-109.
[24] G.P. Gupta, Improved cuckoo search‑based clustering protocol for wireless sensor networks, Procedia Comput. Sci. 125 (2018), 234-240.
[25] S. Verma, N. Sood, and A.K. Sharma, Genetic algorithm‑based optimized cluster head selection for single and multiple data sinks in heterogeneous wireless sensor network, Appl. Soft Comput. 85 (2019), Article ID 105788.
[26] K.N. Dattatraya and K.R. Rao, Hybrid based cluster head selection for maximizing network lifetime and energy efficiency in WSN, J. King Saud Univ. ‑ Comput. Inf. Sci. (2019), in press.
[27] D. Mehta and S. Saxena, MCH‑EOR: Multi‑objective cluster head based energy‑aware optimized routing algorithm in wireless sensor networks, Sustain. Comput.: Inform. Syst. 28 (2020), Article ID 100406.
[28] B.M. Sahoo, T. Amgoth, and H.M. Pandey, Particle swarm optimization based energy efficient clustering and sink mobility in heterogeneous wireless sensor network, Ad Hoc Networks 106 (2020), Article ID 102237.
[29] M. Alazab, K. Lakshmanna, T. Reddy, Q.V. Pham, and P.K.R. Maddikunta, Multi‑objective cluster head selection using fitness averaged rider optimization algorithm for IoT networks in smart cities, Sustain. Energy Technol. Assess. 43 (2021), Article ID 100973.
[30] G. Ran, H. Zhang, and S. Gong, Improving on LEACH protocol of wireless sensor networks using fuzzy logic, J. Inf. Comput. Sci. 7 (2010), no. 3, 767-775.
[31] S.H. Kang and T. Nguyen, Distance based thresholds for cluster head selection in wireless sensor networks, IEEE Commun. Lett. 16 (2012), no. 9, 1396-1399.
[32] M. Shokouhifar and A. Jalali, A new evolutionary based application specific routing protocol for clustered wireless sensor networks, AEU ‑ Int. J. Electron. Commun. 69 (2015), no. 1, 432-441.
[33] Z.M. Zahedi, R. Akbari, M. Shokouhifar, F. Safaei, and A. Jalali, Swarm intelligence based fuzzy routing protocol for clustered wireless sensor networks, Expert Syst. Appl. 55 (2016), no. 1, 313-328.