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A decoupled association scheme is considered based on instantaneous received power in downlink and uplink. Unlike traditional cellular networks where the associated base stations (BSs) in downlink and uplink are the same, in decoupled association the associated BSs in uplink and downlink can be different. The probability of user associations in co-channel BSs in finite multi-tier networks (with finite...
Maintaining fairness in Wireless Mesh Networks (WMNs) is quite important but has been given less attention relative to other aspects such as capacity maximization and maintaining connectivity. IEEE 802.11 MAC protocol has been used as the standard for WMNs although it has been initially designed to operate in wireless local area networks. It is known to be unfair in multi-hop networks. This unfairness...
Most existing works about scheduling and resource allocation for orthogonal frequency division multiplexing (OFDM) based two-way relay networks have focused on immediate relay forwarding. In this paper, we consider relay buffering in delay-tolerant networks. The relay node is aided by two buffers and one for each user, so that it can adaptively decide when to buffer the received packets or to forward...
As an effective solution for indoor coverage and service offloading from the conventional cellular networks, femtocells have attracted a lot of attention in recent years. From the perspective of spectral efficiency, the macrocell base station (MBS) and femtocell base stations (FBSs) are usually deployed in the same spectrum. Then the interference problem has become a key obstruction that limits the...
Based on game theory, a general and compatible modeling process, named by GGMP/CSMA (General Game Modeling Process for CSMA/CA), is proposed. With τ (the probability that a node transmits packet in a slot time) as mixed-strategy of game, and M networks performance parameters as payoff functions of game, GGMP/CSMA constitute M rounds of n-players non-cooperative mixed-strategy game. After playing M...
This paper considers a relay-assisted bidirectional cellular network where the base station (BS) communicates with each mobile station (MS) using orthogonal frequency-division multiple-access (OFDMA) for both uplink and downlink. We first introduce a novel three-time-slot time-division duplexing (TDD) transmission protocol. This protocol unifies the direct transmission, one-way relaying and network-coded...
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