Coexistence of WiFi and LTE in the Unlicensed Band Using Time-Domain Virtualization

In recent years, there has been great interest in utilizing the unlicensed spectrum for mobile data traffic, as deployment of mobile systems are facing severe challenges due to licensed spectrum scarcity. Increasing the bandwidth is a possible solution to increasing the network capacity, however, the licensed spectrum is limited and can be very costly to obtain. Additionally, the lack of available licensed band limits the network capacity which may affect the user experience. Due to this limitation, the research focuses on the coexistence of the LTE and Wi-Fi in the unlicensed band. Currently, there is minimal to no sharing mechanism between the two technologies, which will cause significant interference for the users. This project focuses on using the time-domain virtualization, where the sharing mechanism is allocated in time slots rather than allocating frequency for each technology. The coexistence mechanism of the two technologies are discussed and evaluated using the simulation of a proposed scheduling algorithm.

[1]  Sayantan Choudhury,et al.  Enabling the coexistence of LTE and Wi-Fi in unlicensed bands , 2014, IEEE Communications Magazine.

[2]  Charles L. Despins,et al.  Analysis of CAPEX and OPEX benefits of wireless access virtualization , 2013, 2013 IEEE International Conference on Communications Workshops (ICC).

[3]  Dipankar Raychaudhuri,et al.  Coordinated dynamic spectrum management of LTE-U and Wi-Fi networks , 2015, 2015 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN).

[4]  Sayantan Choudhury,et al.  Performance Evaluation of LTE and Wi-Fi Coexistence in Unlicensed Bands , 2013, 2013 IEEE 77th Vehicular Technology Conference (VTC Spring).

[5]  Hanan Lutfiyya,et al.  Power-Aware Wireless Virtualized Resource Allocation with D2D Communication Underlaying LTE Network , 2016, 2016 IEEE Global Communications Conference (GLOBECOM).

[6]  Mahsa Derakhshani,et al.  Efficient LTE/Wi-Fi Coexistence in Unlicensed Spectrum Using Virtual Network Entity: Optimization and Performance Analysis , 2018, IEEE Transactions on Communications.

[7]  Cristina Cano,et al.  Coexistence of WiFi and LTE in unlicensed bands: A proportional fair allocation scheme , 2015, 2015 IEEE International Conference on Communication Workshop (ICCW).

[8]  Amitava Ghosh,et al.  Downlink Performance Analysis of LTE and WiFi Coexistence in Unlicensed Bands with a Simple Listen-Before-Talk Scheme , 2015, 2015 IEEE 81st Vehicular Technology Conference (VTC Spring).

[9]  Xu Yuan,et al.  Coexistence Between Wi-Fi and LTE on Unlicensed Spectrum: A Human-Centric Approach , 2017, IEEE Journal on Selected Areas in Communications.

[10]  Sayantan Choudhury,et al.  Enabling LTE/WiFi coexistence by LTE blank subframe allocation , 2013, 2013 IEEE International Conference on Communications (ICC).

[11]  A. Girotra,et al.  Performance Analysis of the IEEE 802 . 11 Distributed Coordination Function , 2005 .

[12]  Hanan Lutfiyya,et al.  Wireless Resource Virtualization With Device-to-Device Communication Underlaying LTE Network , 2015, IEEE Transactions on Broadcasting.

[13]  Mikko A. Uusitalo,et al.  System performance of LTE and IEEE 802.11 coexisting on a shared frequency band , 2013, 2013 IEEE Wireless Communications and Networking Conference (WCNC).

[14]  Abdallah Shami,et al.  A Framework for Joint Wireless Network Virtualization and Cloud Radio Access Networks for Next Generation Wireless Networks , 2017, IEEE Access.

[15]  Min Sheng,et al.  Throughput and Fairness Analysis of Wi-Fi and LTE-U in Unlicensed Band , 2017, IEEE Journal on Selected Areas in Communications.

[16]  Yanjiao Chen,et al.  Balancing Income and User Utility in Spectrum Allocation , 2015, IEEE Transactions on Mobile Computing.

[17]  Dipankar Raychaudhuri,et al.  Modeling the coexistence of LTE and WiFi heterogeneous networks in dense deployment scenarios , 2015, 2015 IEEE International Conference on Communication Workshop (ICCW).

[18]  Tho Le-Ngoc,et al.  Efficient LTE/WiFi Coexistence in Unlicensed Spectrum Using Virtual Network Entity , 2017, GLOBECOM 2017 - 2017 IEEE Global Communications Conference.

[19]  Youngnam Han,et al.  Impact of Packet Arrivals on Wi-Fi and Cellular System Sharing Unlicensed Spectrum , 2016, IEEE Transactions on Vehicular Technology.

[20]  Hemant Kumar Rath,et al.  Realistic indoor path loss modeling for regular WiFi operations in India , 2017, 2017 Twenty-third National Conference on Communications (NCC).

[21]  Geoffrey Ye Li,et al.  An Opportunistic Unlicensed Spectrum Utilization Method for LTE and WiFi Coexistence System , 2014, GLOBECOM 2014.

[22]  Abdallah Shami,et al.  Wireless resources virtualization in LTE systems , 2014, 2014 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS).

[23]  Arafat J. Al-Dweik,et al.  Efficient Low-Complexity Scheduler for Wireless Resource Virtualization , 2016, IEEE Wireless Communications Letters.