Per-flow unfairness of TCP throughput in the IEEE 802.11 wireless LAN (WLAN) environment has been reported in past literature. A number of researchers have proposed various methods for alleviating the unfairness; most require modification of MAC protocols or queue management mechanisms in access points. However, the MAC protocols of access points are generally implemented at hardware level, so ...

This paper assumes each user has more than one queue, derives a new packet-dependant proportional fairness power allocation pattern based on the sum of weight capacity and the packet’s priority in users’ queues, and proposes 4 new cross-layer packet-dependant OFDM scheduling schemes based on proportional fairness for heterogeneous classes of traffic. Scenario 1, scenario 2 and scenario 3 lead r...

The main objective of this paper is to propose a more efficient, distributed, and multi-objective billing model that can be implemented in every smart meter the grid for achieving optimality fairness. First, we develop new evaluation index evaluate such as not only addressing fairness but also minimize cost reduce Peak-to-Average Ratio (PAR) load demand subsequently bill each customer. Then, st...

In this paper, we develop an analytical model to discuss the unfairness problem related with dualradio/singleradiovehicle that exists in IEEE 802.11p-based vehicular networks. According to IEEE 1609.4 standard, dual-radiovehicle accesses continuously channel through control channel interval(CCHI) and service channel interval (SCHI),but single-radio vehicle only simultaneously accesses channel i...

Congestion is an important issue which researchers focus on in the Transmission Control Protocol (TCP) network environment. To keep the stability of the whole network, congestion control algorithms have been extensively studied. Queue management method employed by the routers is one of the important issues in the congestion control study. Active queue management (AQM) has been proposed as a rou...

There are several approaches for Radio Resource Management (RRM) in multicarrier cellular systems. This work analyzes and compares two of them: rate-adaptive resource allocation (sub-carriers and power) based on instantaneous data rates, and utility-based packet scheduling based on average data rates. A fundamental RRM problem in wireless cellular networks was chosen as a background to evaluate...

In this study, we propose ARF-aware TCP that resolves the performance anomaly in 802.11 WLAN networks. Performance anomaly is a network symptom that fairness among the nodes is broken when multiple nodes in the same channel have different link rates. Recent studies on the performance anomaly focus on QoS mechanism at MAC layer. However, MAC layer approach has drawbacks such as framing overhead ...

This paper distinguishes an index ordering and a social ordering function as a simple way to formalize the indexing problem in the social choice framework. Two main conclusions are derived. First, the alleged dilemma between welfarism and perfectionnism is shown to involve a third possibility, exemplified by the fairness approach to social choice. Second, the idea that an individual is better o...

We present a novel scheme for uplink scheduling in WiMax networks that attempts to balance worst-case fairness in bandwidth allocation with the delay requirements of traffic, while taking the varying nature of the wireless channel into account. We assume a polling-based mode of operation at the base station ( ), and provide a method of obtaining an optimal polling interval at which the should p...