Comparing the hIndex of Geoffrey G. Parker and Ian F. Akyildiz, who has a higher hIndex?
Ian F. Akyildiz
authored by Ian F. Akyildiz. Ertugrul Basar et al.: Macrodiversity power control in hierarchical CDMA cellular systems. (2002) authored by Ian F. Akyildiz. Zhi Sun et al.: A CDMA-based Medium Access Control for Underwater Acoustic Sensor Networks. (2017) authored by Ian F. Akyildiz. et al.: On modulation for magnetic induction based transmission in wireless underground sensor networks. (2015) authored by Ian F. Akyildiz. Ali Ozer Ercan et al.: RF Energy Harvesting and Transfer for Cellular IoT Communications in 5G Systems. (2018) authored by Ian F. Akyildiz. evgeny M. Khorov et al.: A survey on wireless sensor networks for smart grid. (1999) authored by Ian F. Akyildiz. Steven Kisseleff et al.: Channel capacity of magnetic induction based Wireless Underground Sensor Networks. (2015) authored by Ian F. Akyildiz. A New Wireless Communication Paradigm through Software-controlled Metasurfaces. (2018) authored by Ian F. Akyildiz. Abdallah A. Alshehri et al.: Optimal energy planning for wireless self-contained sensor networks in oil reservoirs. (2014) authored by Ian F. Akyildiz. Ian F. Akyildiz is the author of Zhi Sun and Steven Kisseleff: Deployment Algorithms for Wireless Underground Sensor Networks Using Magnetic Induction. (2005) authored by Ian F. Akyildiz. Ling-San Meng et al.: A diffusion-based binary digital communication system. (2012) authored by Ian F. Akyildiz. igor V. Zhilin et al.: A Universal Multimode (Acoustic, Magnetic Induction, Optical, RF) Software Defined Modem Architecture for Underwater Communication. (2019) authored by Ian F. Akyildiz. Claudio Cicconetti et al.: Joint Compressed Sensing and Manipulation of Wireless Emissions with Intelligent Surfaces. (2009) authored by Ian F. Akyildiz. Shih-Chun Lin et al.: Optimal energy-throughput efficiency for magneto-inductive underground sensor networks. (2014) authored by Ian F. Akyildiz. Steven Kisseleff et al.: Survey on Advances in Magnetic Induction-Based Wireless Underground Sensor Networks. (2018) authored by Ian F. Akyildiz. Towards wireless infrastructure-as-a-service (WlaaS) for 5G software-defined cellular systems. (2019) authored by Ian F. Akyildiz. Zhi Sun et al.: Increasing the Capacity of Magnetic Induction Communications in RF-Challenged Environments. (2004) authored by Ian F. Akyildiz. Pu Wang et al.: Increasing the Capacity of Magnetic Induction Communications in RF- The paper "Mobility Management in Next-Generation Wireless Systems" was invited to be included in Proceedings of IEEE, and is the most cited paper in the literature. Steven Kisseleff et al.: Throughput of the Magnetic Induction Based Wireless Underground Sensor Networks. (2014) authored by Ian F. Akyildiz. <extra_id_0> the CR ad hoc networks or CRAHNs. The paper has been implemented in several simulation tools. It is the first work which demonstrated the existence of optimal sensing parameters in the CR cellular networks, user mobility and spectrum mobility. THz-band communication will enable a plethora of long-awaited applications ranging from instantaneous massive data transfer among nearby devices in Terabit Wireless Personal and Local Area Networks, to ultra-high-definition content streaming over mobile devices in <unk>nHis early insights on the need to enable a single mobile terminal to seamlessly communicate over heterogeneous wireless access systems such as wireless LANs, 3G cellular networks, and satellite networks are seminal contributions to 4G systems., refractions, and diffractions caused by physical objects within the environment highly affect the performance of wireless communications.
[INST]
Utilize the provided context information, to generate answers to the following question: 
- Generate the answer to the question based on the provided context.
- Avoid including any explanations or apologies in your responses.
- Only respond to questions that ask for the answer to the target question without any additional information.
- Strictly provide the answer without any additional text.
Question: Comparing the hIndex of Geoffrey G. Parker and Ian F. Akyildiz, who has a higher hIndex?
Context: authored by Ian F. Akyildiz. Ertugrul Basar et al.: Macrodiversity power control in hierarchical CDMA cellular systems. (2002) authored by Ian F. Akyildiz. Zhi Sun et al.: A CDMA-based Medium Access Control for Underwater Acoustic Sensor Networks. (2017) authored by Ian F. Akyildiz. et al.: On modulation for magnetic induction based transmission in wireless underground sensor networks. (2015) authored by Ian F. Akyildiz. Ali Ozer Ercan et al.: RF Energy Harvesting and Transfer for Cellular IoT Communications in 5G Systems. (2018) authored by Ian F. Akyildiz. evgeny M. Khorov et al.: A survey on wireless sensor networks for smart grid. (1999) authored by Ian F. Akyildiz. Steven Kisseleff et al.: Channel capacity of magnetic induction based Wireless Underground Sensor Networks. (2015) authored by Ian F. Akyildiz. A New Wireless Communication Paradigm through Software-controlled Metasurfaces. (2018) authored by Ian F. Akyildiz. Abdallah A. Alshehri et al.: Optimal energy planning for wireless self-contained sensor networks in oil reservoirs. (2014) authored by Ian F. Akyildiz. Ian F. Akyildiz is the author of Zhi Sun and Steven Kisseleff: Deployment Algorithms for Wireless Underground Sensor Networks Using Magnetic Induction. (2005) authored by Ian F. Akyildiz. Ling-San Meng et al.: A diffusion-based binary digital communication system. (2012) authored by Ian F. Akyildiz. igor V. Zhilin et al.: A Universal Multimode (Acoustic, Magnetic Induction, Optical, RF) Software Defined Modem Architecture for Underwater Communication. (2019) authored by Ian F. Akyildiz. Claudio Cicconetti et al.: Joint Compressed Sensing and Manipulation of Wireless Emissions with Intelligent Surfaces. (2009) authored by Ian F. Akyildiz. Shih-Chun Lin et al.: Optimal energy-throughput efficiency for magneto-inductive underground sensor networks. (2014) authored by Ian F. Akyildiz. Steven Kisseleff et al.: Survey on Advances in Magnetic Induction-Based Wireless Underground Sensor Networks. (2018) authored by Ian F. Akyildiz. Towards wireless infrastructure-as-a-service (WlaaS) for 5G software-defined cellular systems. (2019) authored by Ian F. Akyildiz. Zhi Sun et al.: Increasing the Capacity of Magnetic Induction Communications in RF-Challenged Environments. (2004) authored by Ian F. Akyildiz. Pu Wang et al.: Increasing the Capacity of Magnetic Induction Communications in RF- The paper "Mobility Management in Next-Generation Wireless Systems" was invited to be included in Proceedings of IEEE, and is the most cited paper in the literature. Steven Kisseleff et al.: Throughput of the Magnetic Induction Based Wireless Underground Sensor Networks. (2014) authored by Ian F. Akyildiz. <extra_id_0> the CR ad hoc networks or CRAHNs. The paper has been implemented in several simulation tools. It is the first work which demonstrated the existence of optimal sensing parameters in the CR cellular networks, user mobility and spectrum mobility. THz-band communication will enable a plethora of long-awaited applications ranging from instantaneous massive data transfer among nearby devices in Terabit Wireless Personal and Local Area Networks, to ultra-high-definition content streaming over mobile devices in <unk>nHis early insights on the need to enable a single mobile terminal to seamlessly communicate over heterogeneous wireless access systems such as wireless LANs, 3G cellular networks, and satellite networks are seminal contributions to 4G systems., refractions, and diffractions caused by physical objects within the environment highly affect the performance of wireless communications.
[/INST] Answer:
