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In this paper, a game-theoretic framework based on the iterated prisoner's dilemma (IPD) is proposed to model the repeated dynamic interactions of multiple source nodes when communicating with multiple destinations in ad-hoc wireless networks. In such networks where nodes are autonomous, selfish, and not familiar with other nodes' strategies, fully cooperative behaviors cannot be assumed. Thus, a...
The cross- and co-tier interference creates the challenges to facilitate the concept of heterogeneous cellular networks (HCNs) in practice. In this paper, we establish a combined learning framework to autonomously mitigate the destructive interference. The macrocell is modeled as the leader and protects itself through pricing the interference from small-cells, which are the followers in the stochastic...
Device-to-Device (D2D) communication is considered to be a promising resource reuse technology for local users. Unlike the previous studies on centralized scheduling methods, we develop several distributed resource management schemes for D2D communication underlay cellular networks. In the distributed resource management framework, each D2D user independently decides the transmit resources and power...
Femtocells have attracted growing attentions in academia, industry, and standardization forums in recent years. However, most of existing works on femtocell networks are focused on spectrum efficiency and interference mitigation, energy efficiency aspect is neglected. In this paper, we investigate the maximization of energy efficiency of downlink OFDMA dense femtocell networks by efficient resource...
This paper proposes a game-theoretic random channel access model, compliant with the IEEE 802.11 standard that can be integrated into the distributed coordination function. The objective is to design a game theoretic model that can optimize both throughput and channel access delay in each node in the presence of hidden terminals and thus optimize fairness. We propose a utility function that can decouple...
With the sharp increasing demand of the indoor coverage and network capacity, dense femtocells are the ultimate target of the femto cellular network deployment in urban environment However, dense femtocell deployment could introduce excessive inter-femtocell interference (IFI). To address this problem, this paper proposes a distributed power self-optimization scheme for the downlink of dense femtocell...
Achieving high Quality of Service (QoS) over wireless multihop networks calls for enhanced routing/scheduling algorithms. Towards this direction it has been shown in the literature that the Greedy Backpressure algorithm which combines routing based on greedy hyperbolic embedding with backpressure scheduling, achieves to improve delay while remains throughput optimal. However, the performance of such...
Co-channel heterogeneous network (HetNet) where the conventional macro cells are underlaid with some co-channel low power node (LPN) cells has been recently introduced into HSPA+ to satisfy the rapidly growing demands for improving system coverage and capacity. However, the severe cross-tier uplink interference caused by applying the heterogeneous deployment will inevitably limit the uplink performance...
Enterprise femtocell deployments present numerous design challenges for network operators due to their high density, poor radio environments, and mixture of public and private users. Among these challenges, femtocell pilot management is particularly important due to its potential impact on both femtocell and macrocell users. Femtocell pilots determine femtocell coverage, but must be designed with...
Nowadays, with the abundance of IEEE 802.11 access points (APs), a mobile user has the flexibility to choose one of several APs, each using a separate channel. Rather than relying on the simplistic standardized algorithm to select the AP, it would be preferable to use optimal algorithms that reduce the user data transfer time. In this paper, the AP selection process is apprehended as an ordinal potential...
Channel allocation has become a significant challenge in multi-channel Ad-Hoc networks due to the fast growing of wireless applications and the limitation of spectrum resource. In this paper, we assume that the demand of each user is different and alterable, which has been known by all the others. We study the problem of demand-aware channel allocation (DaChA) from a non-cooperative strategic game...
A matching theoretic approach to study the partner selection in cooperative relaying is followed. Partner selection is considered as a special stable roommate problem where each player ranks its partners by some criterion. Each agent aims here at finding a “good” partner in order to exploit efficiently the spatial diversity achieved with cooperation. We adapt Irving's algorithm [3] for determining...
In this paper, we study how to improve the usage of wireless spectrum for secondary users (SUs) in cognitive radio networks (CRNs) by cooperative transmissions. There are two types of cooperation in CRNs, namely, vertical cooperation, which takes place between primary users (PUs) and SUs, and horizontal cooperation, which occurs among SUs. For vertical cooperation, PUs can lease their frequency bandwidth...
Aloha games with spatial reuse study the interactions among a group of selfish transmit-receive pairs which share a common collision channel using slotted-Aloha-like protocols. These Tx-Rx pairs are allowed to reuse the channel if they cause negligible interference to each other. Our work in [1] has proved the existence of a Least Fixed Point (LFP) which is the most energy-efficient operating point...
Spectrum leasing in cognitive radio networks has recently started to draw the attention of the researchers. According to this concept, the primary users own specific spectral resources and they decide how to lease them to the secondary users so as to optimize their performance. In this paper, we consider an overlay cognitive radio network where the secondary users are allowed to transmit simultaneously...
As a special form of mobile ad hoc network (MANET), vehicular ad-hoc network (VANET) is expected to support communication between vehicles, and between vehicles and stationary infrastructures, such as access points (APs). However, due to the highly mobile characteristics of VANET, the direct connection between source vehicles (SVs) and APs might be inaccessible. In this case, relay vehicles (RVs)...
Due to the high demand of spectrum utilization, cognitive radio (CR) network has been a promising solution to the problem of spectrum scarcity by using dynamic spectrum access technique. In this paper, we study one of the CR network architectures where the CR base stations (CRBSs) demand spectrum resources for the CR users to directly access and utilize. We applied an economical Cournot Game model...
With the exponential growth in the number of mobile subscribers and applications, optimal allocation of limited resources such as bandwidth, power, code, time slot, etc., become necessary. To achieve this, the Telecom Operators need to improve the usage of their existing deployment as well as to plan for appropriate capacity. This can be realized through optimal Radio Frequency (RF) planning, deployment...
Considering a dense cellular network with a large number of base stations, this paper proposes an intercell interference control scheme using mean field game theory. Mean field game theory has been proven to be a more tractable technique than the traditional game theory. In the process of formulating the mean field game, we exploit statistical physics results to decouple the complex system of micorcells...
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