Base Station Subsystem Research Articles

Information technology and software to increase the planning efficiency of cellular base station subsystem

Most modern cellular networks do not meet the updated needs of the market. Therefore, it is necessary to increase the efficiency of their operation to provide the required level of quality of customer service and at the same time reduce the overhead required for the operation and planning of cellular networks. This article is devoted to the generalization of the obtained scientific and practical results and the development of new information technology to increase the efficiency of the base station subsystem of the cellular operator. The developed information technology allows to reduce energy consumption, costs of construction and operation of the base station subsystem of the cellular operator, and thus increase the technical, energy, and economic efficiency of the base station subsystem of the cellular operator. The main result of the application of the developed information technology is to obtain the optimal architecture of base station subsystems and increase their efficiency. Furthermore, based on the use of developed methods, models, and information technology, the software was implemented to plan a more efficient subsystem of base stations of the cellular operator.

Method of optimization of the base station subsystem of the cellular operator

Using the analysis found that the statement of requirements to networks of the fourth generation arenot achieved in one of the implemented networks, the actual quality of customer service is at a lowlevel, which indicates the low efficiency of existing methods of planning of radio networks, transportsystems and management techniques. Therefore, in this work, we have developed a method ofoptimization of the base station subsystem of the cellular operator. The proposed method allows toincrease the range of service areas in cellular networks up to 80%, which allows to minimize therequired number of base stations for network construction, but because almost 2 times to reduce thecost of the operator of cellular communication in the construction of the base station subsyst

EFEKTIVITAS PELAKSANAAN E-LEARNING BAGI BASE STATION SUBSYSTEM (BSS) ENGINEER DI LINGKUNGAN PT TELKOMSEL INDONESIA

Objectives on this research is to find out sveral variables affecting effectiveness on e-learning programme conducted by PT Telkomsel Indonesia for its Base Station Subsystem Engineer. Using Computer Based Instruction approaching model from Lowe et all,2005 (A theory of effective computer-based instruction for adults) combined with integrated model of training evaluation and effectivenes from Alvarez et all, 2010, construct of his research was built. By means of those model, some hypotheses has been made: individual characteristics of learner, organizational characteristics and in the same tie those three variables causality related to e-learning effectiveness. Method used in this research is descriptive and assosiative research to describe samples behaviour wihtin research framework as well as finding out correlation among independent variables to dependent one. Using 100 BSS engineer all over Telkomsel area, results of this research proves that there are significant correlations among three variables above to elearning effectiveness conducted by PT. Telkomsel Indonesia and causality of variables can be proved

A Bi-feedback System of Wireless Sensor Network Event Detection in the Internet of Things

Aiming at general wireless sensor networks event detection algorithms hasn't allowed for the issues of the multidimensional dynamic uncertain data in Internet of Things,this paper proposes a bi-feedback system of wireless sensor networks event detection in the Internet of Things.The bi-feedback system consists of BS(Base Station Subsystem) and NS(Wireless Sensor Nodes Subsystem),the BS devises the BS-DFTS(Dynamic Fault Tolerant Strategy),which calculates the fault-tolerant threshold by factor analysis and feeds the fault-tolerant threshold back to the NS,to update the dynamic uncertain data detective parameters of NS;the NS devises the NS-DFTS(Dynamic Fault Tolerant Strategy),which utilizes the fault-tolerant efficiency of ANN to minimize the communication cost,implements the event detection by the ANN event detective framework with the fault-tolerant threshold as argument,and feeds the result back to the BS to calculate the new fault-tolerant threshold,and implements the feedback loop between the BS and NS,to implement the event detection of the multidimensional dynamic uncertain data in Internet of Things.Finally,the effectiveness of BFS is proved by a serial of simulations.

A distributed cloud architecture for mobile multimedia services

Mobile cloud computing is emerging as a new paradigm for supporting a broad range of multimedia services. MCC alleviates the burden of storage and computation on mobile devices. In this article, we describe design requirements and an architecture for MCC. The novelty in this architecture is an integrated cloudlet and base station subsystem that can meet application-level quality of service requirements and allow mobile resource provisioning close to the user. We present a layered architecture for MCC that elucidates the required functions and protocols. We also propose a connection handoff mechanism among cloudlets and discuss related resource management challenges for MCC.

A Study of the Pass Loss Models Based on Measurement and Simulation

Modeling the radio channel has historically been one of the most difficult parts of mobile radio system design. Channel modeling is the basis for the high-level network planning process (antennae heights, frequency assignment, base station subsystem parameter set, network architecture, etc... ). In this contribution, we will compare two of the most important outdoor macro-cell models, COST 231-WI model and ECC-33 model with simulation and measurement. The measurement is taken in urban areas.

An efficient heuristic for the expansion problem of cellular wireless networks

In this paper we propose a model for the expansion problem of the network subsystem (NSS) of a universal mobile telecommunication system (UMTS) wireless cellular network considering an update in the base station subsystem (BSS). The objective is to minimize the expansion cost of the network subsystem while considering network performance (e.g., call and handover blocking). Since the network expansion problem is a generalization of the design problem, the proposed model can also be used for designing networks. In order to find good solutions, we propose a heuristic based on the tabu search principle. Finally, we present a performance analysis of the proposed heuristic. The analysis shows that quasi-optimal solutions are found with the proposed heuristic.

A demonstration HTS base station sub-system for mobile communications

A demonstration sub-system for mobile communications was developed. In this system, a high-temperature superconducting (HTS) microstrip bandpass filter on r-plane sapphire substrate was designed to have a quasi-elliptic function response, which was aimed at covering the whole receive band of DCS 1800 base station, i.e. 1710–1785 MHz. This filter was then integrated with a low noise amplifier (LNA) and a pulse tube cryocooler, forming a demonstration sub-system. Satisfactory performance of this system was achieved.

RLC/MAC design alternatives for supporting integrated services over EGPRS

The Enhanced General Packet Radio Services is one of the proposals submitted to the IMT-2000 initiative of the ITU for third-generation wireless services. EGPRS is also the evolutionary path chosen by the Universal Wireless Communications Consortium, leading toward the convergence of GSM and IS-136 standards for their next-generation wireless systems. We discuss the feasibility of supporting integrated services, such as packet voice, Web browsing, and best-effort data, using EGPRS. We first describe the relevant capabilities offered by the currently proposed standard, and then outline additional capabilities at the radio link control/medium access control layer that are necessary to support integrated services in a spectrally efficient manner. In summary, these needed capabilities are: fast uplink access during an ongoing session; fast resource assignment for both uplink and downlink; and the ability to differentiate services at the base station subsystem. To realize these capabilities, we propose enhancements to the RLC/MAC layer. These enhancements include a new set of packet control channels (namely, a fast packet access channel in the uplink, and a fast packet access grant channel and a fast packet polling channel in the downlink); uplink access protocols that utilize these control channels; and a modified fast uplink access channel structure. These changes would enable EGPRS to offer a wide range of services through a single packet-based network. Similar ideas are also applicable to other third-generation systems.