• 한국통신학회논문지
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• 제33권5B호
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• pp.334-343
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• 2008

In this work we propose a universal pricing machine, which incorporates a universal pricing framework for the future IEEE802.16 WiMAX service with multiple classes of service. A multimedia service is provided by a QoS provisioning scheme in the WiMAX network and universal pricing means that it can compute the price for any type of service in a unified framework. In the proposed pricing framework we incorporate multiple types of services such as the real time and nonreal time services that are supposed to be provided in the WiMAX network. To that purpose, let us first carry out an analysis on the current pricing scheme of Korean WiMAX service which incorporates only the data size. From that analysis we propose a new pricing scheme for the future WiMAX service that provides different service classes in the network. Via numerical experiment, we verify the implication of the work.

• 한국통신학회논문지
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• 제32권11B호
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• pp.709-717
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• 2007

네트워크 서비스의 요금제는 경제적 효율성과 더불어 네트워크의 혼잡 제어라는 목적도 가지고 있다. 사용자들에 의해 공유되는 링크를 기반으로 네트워크 서비스를 제공하는 독점 공급자는 링크의 대역폭 제약 하에서 수익을 극대화하면서 사용자가 요구한 대역폭을 보장할 수 있는 요금제를 필요로 한다. 이 경우 비선형 요금제는 서비스 제공자의 목적과 사용자들의 다양한 요구를 만족시킬 수 있는 효율적인 요금제이다. 본 연구에서는 대역폭을 제공하는 네트워크 서비스에서 공유 링크의 대역폭 제약이 존재할 때 비선형 요금제가 어떻게 적용될 수 있는지 효용함수와 사용자 수요 특성의 확률 분포를 중심으로 살펴보고, 사용자의 수요 특성이 멱급수 법칙을 따르는 경우 비선형 요금제의 결과로 단위 대역폭당 가격이 일정한 선형 요금제가 나타날 수 있음을 보인다. 또한 사용자의 수요 분포에 대한 불완전한 정보를 가진 서비스 제공자가 네트워크의 혼잡도로부터 최적 요금제를 찾는 방법을 소개하고, 연구 결과에 근거하여 인터넷의 발전 방향과 인터넷 요금제의 관계를 생각한다.

• Journal of Communications and Networks
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• 제9권3호
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• pp.319-329
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• 2007

This paper presents a price-based quality-of-service (QoS) control framework for two-class network services, in which circuit-switched and packet-switched services are defined as "premium service class" and "best-effort service class," respectively. Given the service model, a customer may decide to use the other class as a perfect or an imperfect substitute when he or she perceives the higher utility of the class. Given the framework, fixed-point problems are solved numerically to investigate how static pricing can be used to control the demand and the QoS of each class. The rationale behind this is as follows: For a network service provider to determine the optimal prices that maximize its total revenue, the interactions between the QoS-dependent demand and the demand-dependent QoS should be thoroughly analyzed. To test the robustness of the proposed model, simulations were performed with gradually increasing customer demands or network workloads. The simulation results show that even with substantial demands or workloads, self-adjustment mechanism of the model works and it is feasible to obtain fixed points in equilibrium. This paper also presents a numerical example of guaranteeing the QoS statistically in the short term-that is, through the implementation of pricing strategies.

• 한국통신학회논문지
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• 제34권11B호
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• pp.1191-1199
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• 2009

As the Internet service evolves from the best effort data service to a multimedia service such as a mix of voice, data and video, a need for the guarantee of the quality of service to network services became one of the hot issues for the network operators. On the other hand, the introduction of the multimedia services over the IP network requires a managed differentiated service that adopts a prioritized treatment of packets. This incurs a need for a differentiated pricing scheme for the packets that receive different level of quality of service. This work proposes an analytic framework about packet pricing scheme for these services, and investigate the effect of service differentiation to the packet price for each class. Via numerical experiment, we validate our argument and illustrate the implication of the work.

• 한국통신학회논문지
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• 제37권7B호
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• pp.550-564
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• 2012

In this work we propose a new pricing scheme for the wireless Internet services over WiMAX system. First, let us review the characteristics of wireless network which is based on multi-hop relay WiMAX system. Next, we show why usage-based and QoS-aware pricing scheme is needed in the wireless Internet. After that, we propose a theoretical model for the price of multimedia services called a DAP (DiffServ-aware pricing) scheme for the WiMAX multimedia network which takes into account the consumed radio resource of WiMAX system as well as the supported QoS in the IP backbone network. Finally, we present explicit formulae for the packet price, price of consumed radio resource, and price of consumed bytes.

• 한국통신학회논문지
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• 제28권11B호
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• pp.1007-1015
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• 2003

In this Paper, we propose a method of determining the price for the elastic traffic in the current or future Internet services. First, we investigate the behavior in the consumption of bandwidth of elastic traffic in IP network. Next, we propose a new method to relate the bandwidth usage with the pricing for the elastic traffic, which is based partially or fully on the usage rate of the network bandwidth. Next, we propose an optimal charging function for elastic traffic, which is applicable to any Internet services. Finally, we will illustrate the implication of the work via simple numerical experiments.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 하계종합학술대회 논문집(1)
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• pp.301-304
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• 2001

This paper presents a system for a billing system that can be used to motet dynamic priority users in IntServ operation over DiffServ network. Our billing system is designed to authentication, accounting, metering using Remote Authentication Dial In User Service (RADUS). we present packet pricing model of three different service classes which is Best, Good, Default service in IntServ operation over DiffServ network. The packet pricing model can present users with prices and charges in a way that encourages efficient network use. In this model, the RSVP is used, which is resource management to QoS routing function in the IntServ network.

• Journal of Communications and Networks
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• 제18권3호
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• pp.513-522
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• 2016

We propose a mechanism for monitoring load in quality of service (QoS)-enabled wireless networks and show how it can be used for network management as well as for dynamic pricing. Mobile network traffic, especially video, has grown exponentially over the last few years and it is anticipated that this trend will continue into the future. Driving factors include the availability of new affordable, smart devices, such as smart-phones and tablets, together with the expectation of high quality user experience for video as one would obtain at home. Although new technologies such as long term evolution (LTE) are expected to help satisfy this demand, the fact is that several other mechanisms will be needed to manage overload and congestion in the network. Therefore, the efficient management of the expected huge data traffic demands is critical if operators are to maintain acceptable service quality while making a profit. In the current work, we address this issue by first investigating how the network load can be accurately monitored and then we show how this load metric can then be used to provide creative pricing plans. In addition, we describe its applications to features like traffic offloading and user satisfaction tracking.

• 한국정보과학회논문지:정보통신
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• 제33권1호
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• pp.103-112
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• 2006

인터넷 트래픽 관리를 위한 IETF 차별화 서비스에서는 우선순위 방식의 가격정책이 널리 채택되고 있으며, 이러한 우선순위 방식의 서비스에서 최적가격을 정하기 위해 균형분석을 이용한 연구가 활발히 진행되고 있다. 그러나 '사용자들의 유틸리티 함수를 정확히 알고 있다'는 균형분석의 가정의 타당성에 대한 비판 또한 끊이지 않는다. 따라서 이 논문은 최적가격을 정하는 문제에 있어서, 현존하는 이론적인 연구의 기본 가정과 사용자 유틸리티 함수를 알 수 없는 현실적인 네트워크 환경과의 차이를 좁힐 수 있는 해결책을 제시하고자 한다. 기본 아이디어는 네트워크 서비스 제공자가 서비스 레벨의 가격을 조정하여 사용자들의 레벨 선택 결정을 바꾸도록 유도하고 그를 통해 더 정확한 유틸리티 정보를 알아내도록 하자는 것이다. 이 연구의 공헌은 크게 두 가지로 볼 수 있다. 첫째, 사용자 유틸리티 함수를 추정해나가는 일반적인 원리를 제시하였다 둘째, 유틸리티 함수에 대한 정보를 최대한으로 끌어낼 수 있도록 하는 가격을 정하는 방법을 개발하였다. 우리는 실험을 통해 제안된 추정법의 효과적인 성능을 보여준다.

• 한국통신학회논문지
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• 제34권3B호
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• pp.288-303
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• 2009

In the near future it is foreseen that a genuine multimedia service over the WiMAX system is provided in a worldwide manner by exploiting the QoS technologies introduced in the wireless and wired broadband network. In this work we propose a pricing scheme for the multimedia service over the generic WiMAX system that supports a full QoS functionality. We assume real-time services such as the voice and video as well as the nonreal-time service such as the conventional high-speed data, and we propose a pricing and charging scheme for those services by investigating the inherent characteristics of those services and the multiple-class of QoS-service provided to them. After that we propose a method to compute expected revenue that is obtained from the WiMAX system by using an analytic method to estimate the usage of the bandwidth resources for the different class of services. Via numerical experiment, we verify the implication of the work.