Packet Fair Queueing Scheduling in an Integrated CDMA System Based on Channel Status Information

نویسندگان

  • Seung Sik Choi
  • Yong Ho Kim
  • Jong Seog Koh
  • Dong-Ho Cho
چکیده

A Fair Queueing Algorithm is proposed for data services in an integrated voice/data CDMA system. We introduce short-term and long-term fairness concepts to allocate data users fairly. Using these concepts, we propose Weighted Fair Queueing with Status Control(WFQS) in the consideration of a Generalized Processor Sharing(GPS) ¤uid-¤ow model. This proposed scheme allocates resources using channel status information. In order to implement this fair resource allocation scheme, a virtual clock for short-term fairness and a credit table method for long-term fairness are used. The throughput and delay of data users could be improved when this scheme is applied to wireless channels.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Wireless packet scheduling in an integrated CDMA system using channel status information

A Fair Queueing Algorithm is proposed for data services in an integrated voice/data CDMA system. After delay-sensitive voice users are allocated first, then residual resources are allocated to data users according to the throughput maximization strategy. In order to fairly allocate data users, we use power resource concept which considers the BER and the rate requirement of data users, and appl...

متن کامل

Packet Fair Queueing Scheduling Based on Multirate Multipath-Transparent CDMA for Wireless Networks

The traditional layered approach to wireless networks (network, data link, and physical layer) utilizes suboptimally the limited available capacity. We propose a Quality of Service wireless framework based on the joint design of a packet fair queuing scheduler, demand-assignment Medium Access Control (MAC) protocol, and Multirate Multipath-Transparent CDMA-based physical layer. The unique code ...

متن کامل

Channel adaptive fair queueing for scheduling integrated voice and data services in multicode CDMA systems

CDMA (Code Division Multiple Access) systems are critical building blocks of future high performance wireless and mobile computing systems. While CDMA systems are very mature for voice services, their potentials in delivering high quality data services (e.g., multimedia messaging services) are yet to be investigated. One of the most crucial component in an advanced wideband CDMA system is the j...

متن کامل

Soft-qos Provisioning Using the Token Bank Fair Queueing Scheduling Algorithm

Future generation wireless packet networks will support multimedia applications with diverse quality-of-service (QoS) requirements. Much of the research on scheduling algorithms has been focused on hard QoS provisioning of integrated services. Although these algorithms give hard delay bounds, their stringent requirements sacrifice the potential statistical multiplexing performance and flexibili...

متن کامل

Channel condition self-clocked packet scheduling scheme for wireless networks

Since mobile hosts suffer from burst and location-dependent channel errors in wireless networks, packet fair queueing algorithm in wireline networks cannot be applied directly to wireless networks. Generally, a fair scheduler in a wireless network retains the virtual time of flow when the flow encounters channel errors. This results to the flow having higher priority when it exits from errors, ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2002