Name
Abstract | ||
|---|---|---|
To reduce network access latency, network traffic volume, and server load, caching capacity was proposed as a component of eNodeBs in the radio access network (RAN). These eNodeB caches require less transport energy but bring additional caching energy through providing each eNodeB with caching capacity. It is thus challenging for eNodeBs to make content placement and request routing decisions so as to minimize the total energy consumption, especially when considering different caching hardware technologies, arrival rate of requests and content popularity. To address this problem, we first build an energy model to formulate the problem of minimizing energy consumption at eNodeB caches. Then a Lagrangian relaxation technique is adopted to find a near-optimal solution to the proposed model. Based on the proposed model and the obtained solution, we design a practical scheme for coordinating the content placement and request routing, and thus ensure the minimum-energy eNodeB caches. Compared with the existing works, our proposal significantly reduces the energy consumption by approximately 28% while keeps a good network performance. Our results also indicate that caching hardware technologies and content popularity greatly affect the content placement, therefore are crucial to the energy efficiency of eNodeB caches. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/ICC.2014.6883683 | ICC |
Keywords | Field | DocType |
network access latency,optimisation,enodeb caches,radio access network,coordinated caching model,cache storage,radio access networks,routing decisions request,telecommunication power management,caching energy,energy model,energy consumption,content placement,ran,telecommunication traffic,telecommunication network routing,network traffic volume,energy efficiency,lagrangian relaxation technique,routing,servers,nickel,wireless communication | Efficient energy use,Computer science,Computer network,False sharing,Real-time computing,Lagrangian relaxation,EnodeB,Radio access network,Energy consumption,Access network,Network performance | Conference |
ISSN | Citations | PageRank |
1550-3607 | 17 | 0.75 |
References | Authors | |
12 | 6 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yuemei Xu | 1 | 68 | 7.00 |
| Yang Li | 2 | 208 | 15.35 |
| Zihou Wang | 3 | 65 | 3.85 |
| Tao Lin | 4 | 52 | 2.75 |
| guoqiang zhang | 5 | 44 | 3.39 |
| Song Ci | 6 | 1086 | 106.10 |