D2D-U: Device-to-Device Communications in Unlicensed Bands for 5G System

Device-to-device (D2D) communication, which enables direct communication between nearby mobile devices, is an attractive add-on component to improve spectrum efficiency and user experience by reusing licensed cellular spectrum in 5G system. In this paper, we propose to enable D2D communication in unlicensed spectrum (D2D-U) as an underlay of the uplink LTE network for further booming the network capacity. A sensing-based protocol is designed to support the unlicensed channel access for both LTE and D2D users. We further investigate the subchannel allocation problem to maximize the sum rate of LTE and D2D users while considering their interference to the existing Wi-Fi systems. Specifically, we formulate the subchannel allocation as a many-to-many matching problem with externalities, and develop an iterative user-subchannel swap algorithm. Analytical and simulation results show that the proposed D2D-U scheme can significantly improve the system sum rate.

[1]  Kai Tang,et al.  Extending LTE to unlicensed band - Merit and coexistence , 2015, 2015 IEEE International Conference on Communication Workshop (ICCW).

[2]  Alvin E. Roth,et al.  Two-Sided Matching: A Study in Game-Theoretic Modeling and Analysis , 1990 .

[3]  Zhongming Zheng,et al.  LTE-unlicensed: the future of spectrum aggregation for cellular networks , 2015, IEEE Wireless Communications.

[4]  Ying Li,et al.  A Cooperative Matching Approach for Resource Management in Dynamic Spectrum Access Networks , 2014, IEEE Transactions on Wireless Communications.

[5]  David A. Plaisted.  Some Polynomial and Integer Divisibility problems are NP-Hard , 1978, SIAM J. Comput..

[6]  Xuemin Shen,et al.  Operator controlled device-to-device communications in LTE-advanced networks , 2012, IEEE Wireless Communications.

[7]  Lingyang Song,et al.  Radio Resource Allocation for Downlink Non-Orthogonal Multiple Access (NOMA) Networks Using Matching Theory , 2014, 2015 IEEE Global Communications Conference (GLOBECOM).

[8]  Vera Stavroulaki,et al.  Smart management of D2D constructs: an experiment-based approach , 2014, IEEE Communications Magazine.

[9]  Li Chen,et al.  Utility-Based Flexible Resource Allocation for Integrated LTE-U and LTE Wireless Systems , 2015, 2015 IEEE 81st Vehicular Technology Conference (VTC Spring).

[10]  Lingyang Song,et al.  Device-to-device communications underlaying cellular networks in unlicensed bands , 2017, 2017 IEEE International Conference on Communications (ICC).

[11]  Stefan Parkvall,et al.  Design aspects of network assisted device-to-device communications , 2012, IEEE Communications Magazine.

[12]  Lingyang Song,et al.  Demo: WiFi Multihop: Implementing Device-to-Device Local Area Networks by Android Smartphones , 2015, MobiHoc.

[13]  Miao Pan,et al.  Exploiting Student-Project Allocation Matching for Spectrum Sharing in LTE-Unlicensed , 2014, 2015 IEEE Global Communications Conference (GLOBECOM).

[14]  Kyunghan Lee,et al.  Mobile Data Offloading: How Much Can WiFi Deliver? , 2013, IEEE/ACM Transactions on Networking.

[15]  Geoffrey Ye Li,et al.  LBT-Based Adaptive Channel Access for LTE-U Systems , 2016, IEEE Transactions on Wireless Communications.

[16]  Qiang Ni,et al.  5G Communications Race: Pursuit of More Capacity Triggers LTE in Unlicensed Band , 2015, IEEE Vehicular Technology Magazine.

[17]  Weihua Zhuang,et al.  An Energy Efficient MAC Protocol for Fully Connected Wireless Ad Hoc Networks , 2014, IEEE Transactions on Wireless Communications.

[18]  Dusit Niyato,et al.  A Dynamic Offloading Algorithm for Mobile Computing , 2012, IEEE Transactions on Wireless Communications.

[19]  Geoffrey Ye Li,et al.  Rethinking Mobile Data Offloading for LTE in Unlicensed Spectrum , 2016, IEEE Transactions on Wireless Communications.

[20]  Yu Cheng,et al.  Modeling and Analysis of MAC Protocol for LTE-U Co-Existing with Wi-Fi , 2014, 2015 IEEE Global Communications Conference (GLOBECOM).

[21]  Rui Liu,et al.  Device-to-Device Communications in Unlicensed Spectrum: Mode Selection and Resource Allocation , 2016, IEEE Access.

[22]  Olav Tirkkonen,et al.  Resource Sharing Optimization for Device-to-Device Communication Underlaying Cellular Networks , 2011, IEEE Transactions on Wireless Communications.

[23]  Walid Saad,et al.  Matching with externalities for context-aware user-cell association in small cell networks , 2013, 2013 IEEE Globecom Workshops (GC Wkshps).

[24]  Hamid Aghvami,et al.  A survey on mobile data offloading: technical and business perspectives , 2013, IEEE Wireless Communications.

[25]  Cristina Cano,et al.  Unlicensed LTE/WiFi coexistence: Is LBT inherently fairer than CSAT? , 2015, 2016 IEEE International Conference on Communications (ICC).

[26]  Zhu Han,et al.  Wireless Device-to-Device Communications and Networks , 2015 .

[27]  Zhu Han,et al.  Radio Resource Allocation for Device-to-Device Underlay Communication Using Hypergraph Theory , 2016, IEEE Transactions on Wireless Communications.

[28]  Lingyang Song,et al.  Radio Resource Allocation for Downlink Non-Orthogonal Multiple Access (NOMA) Networks Using Matching Theory , 2014, GLOBECOM 2014.

[29]  Robert W. Irving.  Stable matching problems with exchange restrictions , 2008, J. Comb. Optim..

[30]  Long Li,et al.  Device-to-device meets LTE-unlicensed , 2016, IEEE Communications Magazine.

[31]  Meryem Simsek,et al.  When cellular meets WiFi in wireless small cell networks , 2013, IEEE Communications Magazine.

[32]  David A. Plaisted,et al.  Some polynomial and integer divisibility problems are NP-HARD , 1976, 17th Annual Symposium on Foundations of Computer Science (sfcs 1976).

[33]  Geoffrey Ye Li,et al.  A Framework for Co-Channel Interference and Collision Probability Tradeoff in LTE Licensed-Assisted Access Networks , 2016, IEEE Transactions on Wireless Communications.

[34]  David Manlove,et al.  The exchange-stable marriage problem , 2005, Discret. Appl. Math..

[35]  Xiang Cheng,et al.  Efficiency Resource Allocation for Device-to-Device Underlay Communication Systems: A Reverse Iterative Combinatorial Auction Based Approach , 2012, IEEE Journal on Selected Areas in Communications.

[36]  Olle Häggström.  Finite Markov Chains and Algorithmic Applications , 2002 .

[37]  Geoffrey Ye Li,et al.  Cellular Meets WiFi: Traffic Offloading or Resource Sharing? , 2016, IEEE Transactions on Wireless Communications.

[38]  Adam Wierman,et al.  Peer Effects and Stability in Matching Markets , 2011, SAGT.

[39]  Carl Wijting,et al.  Device-to-device communication as an underlay to LTE-advanced networks , 2009, IEEE Communications Magazine.

[40]  Geoffrey Ye Li,et al.  Guest Editorial: LTE in Unlicensed Spectrum , 2016, IEEE Wirel. Commun..

[41]  Sungsoo Park,et al.  Capacity Enhancement Using an Interference Limited Area for Device-to-Device Uplink Underlaying Cellular Networks , 2011, IEEE Transactions on Wireless Communications.

[42]  Walid Saad,et al.  Context-Aware Small Cell Networks: How Social Metrics Improve Wireless Resource Allocation , 2015, IEEE Transactions on Wireless Communications.

[43]  Lingyang Song,et al.  Sub-Channel Assignment, Power Allocation, and User Scheduling for Non-Orthogonal Multiple Access Networks , 2016, IEEE Transactions on Wireless Communications.