# Energy-Efficient Spatial Query-Centric Geographic Routing Protocol in Wireless Sensor Networks
## 3 QTGrid Routing Protocol
### CH and PCH Election
#### 3.2.2 PCH Election
(2018)_ [PERSON]; [PERSON]; Villas, L.A.; Miyazawa, F.K. Improved continuous enhancement routing solution for energy-aware data aggregation in wireless sensor networks. _Int. J. Distrib. Sens. Netw._**2018**, _14. [CrossRef]_
* _[PERSON] and [PERSON] (2016)_ [PERSON]; [PERSON] Lossless address data compression using quadtree clustering of the sensors in a grid based WSN. _Ad Hoc Netw._**2016**, _56_, 84-95. [CrossRef]
* _[PERSON] (2015)_ [PERSON] Adaptive Data Fusion for Energy Efficient Routing in Wireless Sensor Network. _Int. J. Energy Optim. Eng._**2015**, \(4\), 1-17. [CrossRef]
* _[PERSON] et al. (2018)_ [PERSON]; [PERSON]; [PERSON]; [PERSON] Multi-Source Heterogeneous Data Fusion. In Proceedings of the International Conference on Artificial Intelligence & Big Data, Guangzhou, China, 21-23 June 2008; IEEE: Piscataway, NJ, USA, 2018. * [PERSON] and [PERSON] (2018) [PERSON]; [PERSON] [PERSON] A Compressed Sensing Approach to Resolve the Energy Hole Problem in Large Scale WSNs. _Wirel. Personal. Commun._**2018**, _99_, 185-201. [CrossRef]
* [PERSON] and [PERSON] (2015) [PERSON]; [PERSON] A grid based clustering and routing algorithm for solving hot spot problem in wireless sensor networks. _Wirel. Netw._**2015**, _22_, 1901-1916. [CrossRef]
* [PERSON] et al. (2007) [PERSON]; [PERSON]; [PERSON]; [PERSON] Grid-Based Clustering Method for Large-Scale Wireless Sensor Networks. In Proceedings of the International Conference on Communications, Glasgow, Scotland, 24-28 June 2007; IEEE: Piscataway, NJ, USA, 2007. * [PERSON] et al. (2018) [PERSON] [PERSON]; [PERSON]; [PERSON] [PERSON] Energy-efficient grid-based routing algorithm using intelligent fuzzy rules for wireless sensor networks. _Comput. Electr. Eng._**2018**, _68_, 62-75. [CrossRef]
* [PERSON] et al. (2007) [PERSON]; [PERSON] [PERSON]; [PERSON]; [PERSON] [PERSON] GRCS: A cluster-based geographic routing protocol for WSNs. In Proceedings of the Ninth International Conference on Ubiquitous & Future Networks, Milan, Italy, 4-7 July 2007. * [PERSON] et al. (2014) [PERSON]; [PERSON]; [PERSON]; [PERSON] [PERSON] GEGR: A grid-based enabled geographic routing in Wireless Sensor Networks. In Proceedings of the IEEE Malaysia International Conference on Communications, Kuala Lumpur, Malaysia, 3-5 November 2014. * [PERSON] et al. (2017) [PERSON]; [PERSON]; [PERSON]; [PERSON] [PERSON] Markov Chain Model-Based Optimal Cluster Heads Selection for Wireless Sensor Networks. _Sensors_**2017**, _17_, 440. [CrossRef] [PubMed]
* [PERSON] et al. (2009) [PERSON]; [PERSON]; [PERSON] Energy-efficient algorithm for network status information collecting in wireless sensor networks. In Proceedings of the International Conference on Recent Advances and Innovations in Engineering (ICRAIE-2014), Jaipur, India, 9-11 May 2009. * [PERSON] (2006) [PERSON]; [PERSON] A Quadtree-Based Data Dissemination Protocol for Wireless Sensor Networks with Mobile Sinks. In Proceedings of the International Conference on Personal Wireless Communications, Albacete, Spain, 20-22 September 2006; Springer: Heidelberg, Germany, 2006; pp. 447-458. * [PERSON] et al. (2011) [PERSON]; [PERSON]; [PERSON] Geographical quadtree routing. In Proceedings of the IEEE Symposium on Computers and Communications, IEEE Computer Society, Corfu, Greece, 28 June-1 July 2011; pp. 302-308. * [PERSON] et al. (2000) [PERSON]; [PERSON]; [PERSON] Fast Dynamic Encoding of Linear Quadtree and Its Realization. _J. Wuhan Technol. Univ. Surv. Mapp._**2000**, \(4\), 324-328. * [PERSON] and [PERSON] (2013) [PERSON]; [PERSON] Internet of things-oriented wireless sensor networks review. _J. Electron. Inf. Technol._**2013**, _35_, 215-227. [CrossRef]
* [PERSON] et al. (2015) [PERSON]; [PERSON]; [PERSON] [PERSON] A survey on data aggregation mechanisms in wireless sensor networks. In Proceedings of the International Conference on Information & Communication Technologies, Bali, Indonesia, 27-29 May 2015. * [PERSON] et al. (2002) [PERSON]; [PERSON]; [PERSON] An application-specific protocol architecture for wireless microsensor networks. _IEEE Trans. Wirel.