The effects of different retransmission control policies on the performance of a mobile data system employing the slotted ALOHA protocol are investigated, with the emphasis on the unfairness between close-in and distant users due to the near-far effect. An analytical multi-group model is developed to evaluate both the user and the network performance of the mobile slotted ALOHA network under tw...

The authors examined how the interaction between perceived unfairness and episodic envy predicts interpersonal counterproductive work behaviors toward the envied other. In 2 studies using different samples and methods to elicit envy, predictions were compared based on the social exchange and attribution models of fairness. The results support the social exchange model of fairness, showing that ...

The de facto quality-of-service provisioning mechanism for wireless LANs is the Enhanced Distributed Channel Access (EDCA), which provides enhanced service differentiation based on four different prioritized Access Categories (ACs). In this paper, we show that the multiple category mechanism of EDCA causes a new type of unfairness problem among the ACs of same priority class when the numbers of...

The fairness and throughput of TCP suffer when it is used in mobile ad hoc networks. This is a direct consequence of TCP wrongly attributing packet losses due to link failures (a consequence of mobility) to congestion. While this problem causes an overall degradation of throughput, it especially affects connections with a large number of hops, where link failures are more likely. Thus, short co...

This paper addresses the unfairness problem appearing in 802.6-based DQDB MANs. Traffic load demand is characterized as low (below 0.4 of the channel capacity), normal (from 0.4 to 0.9 of the channel capacity) or heavy (greater than 0.9 of the channel capacity). At low loads the 802.6 protocol is acceptably fair. At normal loads, however, the protocol performance is markedly unfair. The unfairn...

Abstract Actuarial fairness pertains to the situation in which price of an insurance contract is equal its expected outcome. We show that actuarial leads “unfairness” annuitants with higher survival rates can choose a better payoff sense second-order stochastic dominance than those lower rates. To deal this issue, we propose utility pricing, i.e., determine prices such all contracts have same (...

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 ...