TY - GEN
T1 - Location-Aware Cross-Tier Cooperation in Cache-Enabled Heterogeneous Networks
AU - Feng, Tianming
AU - Shi, Shuo
AU - Wu, Chenyu
AU - Gu, Xuemai
N1 - Publisher Copyright:
© 2021 IEEE
PY - 2021
Y1 - 2021
N2 - Interference management is an interesting topic to be studied in cache-enabled heterogeneous networks (HetNets). In this work, by carefully exploring the relationships among the nearest macro base station (MBS), the nearest small base station (SBS) that stores the requested file, and the nearest SBS that does not store the requested file of a typical user, we propose a location-aware cross-tier cooperation (LCC) scheme to mitigate the cross-tier interference in cache-enabled HetNets. Taking the successful transmission probability (STP) as the performance metric, we firstly derive the expression of it using stochastic geometry. Then, a local-optimal random caching strategy (LORC) that maximizes the STP is obtained. Finally, simulation results verify the effectiveness of the proposed LCC scheme, and demonstrate the advantages of the LORC over three existing caching strategies.
AB - Interference management is an interesting topic to be studied in cache-enabled heterogeneous networks (HetNets). In this work, by carefully exploring the relationships among the nearest macro base station (MBS), the nearest small base station (SBS) that stores the requested file, and the nearest SBS that does not store the requested file of a typical user, we propose a location-aware cross-tier cooperation (LCC) scheme to mitigate the cross-tier interference in cache-enabled HetNets. Taking the successful transmission probability (STP) as the performance metric, we firstly derive the expression of it using stochastic geometry. Then, a local-optimal random caching strategy (LORC) that maximizes the STP is obtained. Finally, simulation results verify the effectiveness of the proposed LCC scheme, and demonstrate the advantages of the LORC over three existing caching strategies.
KW - Caching
KW - CoMP
KW - HetNets
KW - Stochastic geometry
UR - https://www.scopus.com/pages/publications/85125676174
U2 - 10.1109/IWCMC51323.2021.9498678
DO - 10.1109/IWCMC51323.2021.9498678
M3 - 会议稿件
AN - SCOPUS:85125676174
T3 - 2021 International Wireless Communications and Mobile Computing, IWCMC 2021
SP - 1748
EP - 1753
BT - 2021 International Wireless Communications and Mobile Computing, IWCMC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 17th IEEE International Wireless Communications and Mobile Computing, IWCMC 2021
Y2 - 28 June 2021 through 2 July 2021
ER -