TY - GEN
T1 - Modeling of D2D enhanced two-tier dynamic TDD heterogeneous cellular networks
AU - Sun, Hongguang
AU - Sheng, Min
AU - Wildemeersch, Matthias
AU - Quek, Tony Q.S.
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2015/1/12
Y1 - 2015/1/12
N2 - Over the last decade, the growing amount of UL and DL mobile data traffic has been characterized by substantial asymmetry and time variations. Dynamic time-division duplex (TDD) has the capability to accommodate to the traffic asymmetry by adapting the UL/DL configuration to the current traffic demands. In this work, we study a two-tier heterogeneous cellular network (HCN) where the macro tier and small cell tier operate according to a dynamic TDD scheme on orthogonal frequency bands. To offload the network infrastructure, mobile users in proximity can engage in D2D communications, whose activity is determined by a carrier sensing multiple access (CSMA) scheme to protect the ongoing infrastructure-based and D2D transmissions. We present an analytical framework to evaluate the network performance in terms of load-aware coverage probability and network throughput. Through the study of the tradeoff between coverage probability and D2D user activity, we provide guidelines for the optimal design of D2D network access.
AB - Over the last decade, the growing amount of UL and DL mobile data traffic has been characterized by substantial asymmetry and time variations. Dynamic time-division duplex (TDD) has the capability to accommodate to the traffic asymmetry by adapting the UL/DL configuration to the current traffic demands. In this work, we study a two-tier heterogeneous cellular network (HCN) where the macro tier and small cell tier operate according to a dynamic TDD scheme on orthogonal frequency bands. To offload the network infrastructure, mobile users in proximity can engage in D2D communications, whose activity is determined by a carrier sensing multiple access (CSMA) scheme to protect the ongoing infrastructure-based and D2D transmissions. We present an analytical framework to evaluate the network performance in terms of load-aware coverage probability and network throughput. Through the study of the tradeoff between coverage probability and D2D user activity, we provide guidelines for the optimal design of D2D network access.
UR - http://www.scopus.com/inward/record.url?scp=84922569012&partnerID=8YFLogxK
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U2 - 10.1109/ICCChina.2014.7008349
DO - 10.1109/ICCChina.2014.7008349
M3 - Conference contribution
AN - SCOPUS:84922569012
T3 - 2014 IEEE/CIC International Conference on Communications in China, ICCC 2014
SP - 609
EP - 614
BT - 2014 IEEE/CIC International Conference on Communications in China, ICCC 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE/CIC International Conference on Communications in China, ICCC 2014
Y2 - 13 October 2014 through 15 October 2014
ER -