Optimal TAL-based registration with cell-based central policy in mobile cellular networks: a semi-Markov process approach

Abstract

LTE networks consist of tracking areas (TAs) or a group of cells, while several TAs constitute a TA list (TAL). The LTE network adopts TAL-based registration, where, if the user equipment (UE) enters a TA that is not in its current TAL, the UE registers the TA to inform the network of its new location. A central policy for TAL allocation, known as a TA-based central policy, was proposed for TAL-based registration. Under the central policy, the TA in which the UE registers its location becomes the central TA of the new TAL. This policy can lessen the possibility of the UE quickly exiting the new TAL. However, considering the actual network architecture, it makes TAL-based registration a challenge to implement. Thus to mitigate this problem, a cell-based central policy is proposed. This study investigates TAL-based registration with cell-based central policy (TbRcc) for LTE networks. TAL-based registration with cell-based central policy and single-cell TA (TbRcc1c) is also proposed to reduce the registration cost and make up the optimal TAL. Furthermore, an improved analysis model is presented to reflect the effect of the implicit registration of calls and obtain the exact cost. Comparing the performance of the proposed scheme with those of classical TAL-based registration and distance-based registration, the performance of the proposed scheme is shown to improve. The results of this study can help research that addresses the mobility management of next-generation networks, as well as LTE networks.

Application of Markov Model-Based IoT in Agricultural Insurance and Risk Management

“…erefore, it is a process of behavioral conversion, that is, through a certain intermediary through fiscal expenditure behavior, the behavior of the subsidized party is finally achieved [24]. Here, the first stage is how to choose how to pass the subsidy to the subsidized person and make it directly feel the benefits of the subsidy or get the benefits of the subsidy through adjustment behavior [25].…”

Mobility Management Scheme with Mobility Prediction in Wireless Communication Networks

“…In general, there exists a trade-off relation to treat the signaling cost between the location registration and paging [2,[4][5][6][7]. So far, many studies have been conducted to reduce the total signaling cost for registration and paging [4,[8][9][10][11][12][13].…”

“…Various results on mobility management schemes to minimize the total signaling cost have been proposed, such as zone-based registration [14][15][16], movement-based registration [5,17], distance-based registration [18][19][20][21], TAL-based registration [11,22], and so on. Among them, Grigoreva et al [10] have proposed a registration scheme with flexible TAL forming to reduce total signaling cost for automotive users in LTE-advanced communication network using information of UE's moving direction.…”

“…However, their study did not present user's accurate mobility and corresponding analytical model to evaluate its performance and show its superiority. Note that the improved TAL-based algorithm proposed by Jang and Baek [11] did not consider the UE's mobility prediction.…”

“…In addition, a simulation study was performed using RAPTOR [23] to validate the analytical results. Its performance was compared with those of distance-based [20,21] and TAL-based registration schemes [11,22] previously proposed in LTE networks.…”