Journal
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
Volume 15, Issue 2, Pages 1101-1113Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TWC.2015.2483704
Keywords
Heterogeneous cellular networks; timely throughput; local delay; tradeoffs; BS activity; mobility
Funding
- National Hi-Tech R&D Program of China [2014AA01A702]
- National Natural Science Foundation of China [61201228]
- Zhejiang Provincial Natural Science Foundation [LY13F010003]
- Fundamental Research Funds for the Central Universities [2015XZZX001-02]
- SUTD-ZJU Research Collaboration [SUTD-ZJU/RES/01/2014]
- A*STAR SERC [1224104048]
- MOE [MOE2014-T2-2-002]
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Network densification is one of the dominant evolutions to increase network capacity toward future cellular networks. However, the complex and random interference in the resultant interference-limited heterogeneous cellular networks (HCN) may deteriorate packet transmission reliability and increase transmission delay, which are essential performance metrics for system design in HCN. By modeling the locations of base stations (BSs) as superimposed of independent Poisson point process, we propose an analytical framework to investigate delay and reliability tradeoffs in HCN in terms of timely throughput and local delay. In our analysis, we take the BS activity and temporal correlation of transmissions into consideration, both having significant effects on the performances. The effects of mobility, BS density, and association bias factor are evaluated through numerical results.
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