Quantitative Comparison of the Efficiency and Scalability of the Current and Future LTE Network Architectures

Table 7

Performance of GTP and PMIP in the various EPC network architectures.

	Centralized		Decentralized		Ratio
	GTP	PMIP	GTP	PMIP	GTP	PMIP
LAP	55%	50%	40%	44%	44.35	7.63
LHP	55%	53%	40%	47%	61.83	2.94
LDPD	52%	50%	41%	42%	11.54	5.83
CAP	155.8%	154.7%	144.1%	151.5%	8.90	3.52
CHP	153.8%	156.4%	141.6%	154.3%	12.31	2.30
CDPD	156.7%	157.2%	147.3%	156.1%	6.74	3.13

percentage shows the growth rate (GR) of the exponential graphs. percentage shows the increasing slope (IS) of the liner graphs. The exponential and linear graphs are expressed by and , respectively. and represent the performance metrics and the number of MNs in - and -axes, respectively. (R) shows the proportion of the metrics in centralized to decentralized architecture, derived for .