Research Article
Quantitative Comparison of the Efficiency and Scalability of the Current and Future LTE Network Architectures
Table 5
Input parameters (assumptions).
| | Symbol | Definition | Value |
| | Number of mobile nodes | | | Average velocity of mobile nodes | 25, 50 or 75 km/h | | Radius of the coverage area of the access routers | 1200 m | | Average data packet size | 1200 Bytes | | CNTR | CNs generating traffic (a Poisson traffic stream) | With average 100 pps | | PR | Routers processing rate | 1000K pps | | TR | Network links transmission rate | 100K pps | | Cost of processing , routing , or tunneling at PGW | 1 unit per KB | | Cost of processing , routing , or tunneling at SGW | 1/3 unit per KB | | Cost of routing at the distribution router | 1/4 unit per KB |
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