Given the limited channel capacity in wireless LANs, it is important to achieve high throughput and good fairness through medium access control (MAC) schemes. Although many schemes have been proposed to enhance throughput or fairness of the original IEEE 802.11 standard, they either fail to consider both throughput and fairness, or to do so with complicated algorithms. In this paper, we propose...

This paper addresses downlink cooperation at a system level. Cooperation between Base Stations is an alternative to macrodiversity to provide QoS continuity in case of mobility. We propose a Radio Resource Management strategy for the relay channel, made of relayed users identification, resource allocation and power control in an OFDMA-based system. Four scheduling methods are tested for power a...

Due to the scarceness of communication resource, therefore, resource allocation in wireless networks is an important issue. In this paper, we introduce a time slot allocation problem for multi-user wireless networks to achieve fairness at the node level and high network throughput in WiMAX mesh networks. We first propose a multi-objective programming formulation to model the subscriber stations...

As asteroid mining projects break through the technical barriers, more countries have plan to become pioneers. However, world currently does not a complete policy ensure that can benefit all of humanity. Therefore, exploring its fairness and normality needs be on agenda. AHP EWM are used construct global fair distribution model is in line with "global interests." It defined as fairness" from pe...

This paper provides an analytical evaluation of the performance of proportional fair (PF) scheduling in Orthogonal FrequencyDivision Multiple Access (OFDMA) wireless systems. OFDMA represents a promising multiple access scheme for transmission over wireless channels, as it combines the orthogonal frequency division multiplexing (OFDM) modulation and subcarrier allocation. On the other hand, the...

A n ef ic ient fa i r queueing scheme which is feasible f o r broadband implementation i s proposed and i ts performance i s analyzed. W e define fairness in a selfcontained manner, eliminating the need f o r the hypothetical fluid-flow reference sys tem used in the present state of art and thereby removing the associated computational complexity. The scheme i s based on the adoption of an inte...

Junzhou LUO Computer Communications and Networks Group Department of Computer Science and Engineering Southeast University P.R.China Abstract-The worst-case fairness index (WFI) has proved to be an important metric in the provision of fairness and bounded delay in both wired and wireless networks. A feature of wireless links is location dependent burst errors that result in degraded WFI. This p...

This paper proposes a fair and efficient QoS scheduling scheme for IEEE 802.16 BWA systems that satisfies both throughput and delay guarantee to various real and non-real time applications. The proposed QoS scheduling scheme is compared with an existing QoS scheduling scheme proposed in literature in recent past. Simulation results show that the proposed scheduling scheme can provide a tight Qo...

It is not easy to analyze the physical system with Petri net if the system is large-scaled and complex, mainly because the structure of the Petri net model is also complex. In order to overcome this difficulty, a decomposition method of Petri net based on an index function of places is introduced, with which a set of well-formed and structure-simple sub net systems can be obtained. For all the ...

This paper revisits the study of the Slotted ALOHA protocol with J = 2 terminals. Unlike previous approaches, this work employs multi-objective optimization tools. The work is focused on the characterization of the boundary (envelope) or Pareto optimal front curve of different types of trade-off region: the conventional throughput region, sum-throughput vs. fairness, and sum-throughput vs. tran...