Network utility maximization, delayaware network flow. The resulting policy is shown to ensure deterministic worstcase delay guarantees and to yield a throughput utility that differs from the optimally fair value by an amount. We consider the problem of maximizing aggregate user utilities over a multihop network, subject to link capacity constraints. Lowcomplexity ramp metering for freeway congestion. In this paper, we formulated a dynamic network utility maximization problem for the optimal rate allocation of video streams using a novel contentaware timevarying utility function. Network utility maximizationbased congestion control over wireless. Network utility maximization for overcoming inefficiency. The duality gap thus measures the cost of not splitting. However, 2123 use delaybased rules only in the context of queue stability. Due to the presence of buffers in the inner network nodes, each congestion event leads to buffer queueing and thus to an increasing endtoend delay. A distributed newton method for network utility maximization ermin wei y, asuman ozdaglar, and ali jadbabaiez abstractmost existing work uses dual decomposition and subgradient methods to solve network utility maximization num problems in a distributed manner, which suffer from slow rate of convergence properties. A distributed newton method for network utility maximization. In addition, our results imply that the system operating. Stochastic network utility maximization princeton university.
Inspired by work on network utility maximization num 18 and by machinegenerated algorithms, we start with an objective function to optimize. Network utility maximization, multipleunicast network flow, delay aware network optimization. Abstractthe crosslayer utility maximization problem, which is subject to stability constraints for a multicommodity wireless network where all links share the same number of orthogonal channels, is considered in this paper. Network utility maximization in twoway flow scenario. Network utility maximization under maximum delay constraints and. Network utility is an application included with macos that provides a variety tools that can be used related to computer network information gathering and analysis. Abstract network utility maximization num is an iconic problem in network tra c management which is at the core of many current and emerging network design paradigms and, in particular, softwarede. Delaybased congestion algorithms are a viable solution. Network utility maximization, twoway flows, throughput rates 1. We assume a timeslotted network, where the channel gains randomly change from one slot to another. Neely, leandros tassiulas, resource allocation and crosslayer control in wireless networks, foundations and trends in. Delaybased network utility maximization pdf download statut firewal v1. Request pdf quasioptimal network utility maximization for scalable video. Basic network utility maximization since the publication of the seminal paper 6 by kelly, maulloo, and tan in 1998, the framework of network utility maximization num has found many applications in network rate allocation algorithms and internet congestion control protocols e.
We provide a distributed algorithm based on the dual decomposition and investigate the impacts of link failures on the network utility. It is a header file which contains utilities in unrelated domains. Wireless network utility maximization stanford university. Maximizing network utility of rechargeable sensor networks. Pdf the endtoend rate control in multipath wireless multihop networks has been widely. Network utility maximization with nonconcave utilities. Optimal demand response based on utility maximization in power networks. Network utility maximization with path cardinality constraints. Effects of clustering in ad hoc networks from network. This paper considers reasonable bandwidth allocation for multiclass services in peertopeer p2p networks, measures the satisfaction of each peer as a customer by a utility function when acquiring one service, and develops an optimization model for bandwidth allocation with the objective of utility maximization. An asynchronous fixedpoint algorithm for resource sharing. Optimal demand response based on utility maximization in. Pdf network utility maximization in multipath lossy wireless. Abstractdemand side management will be a key component of future smart grid that can help reduce peak load and adapt elastic demand to.
It is well known that maxweight policies based on a queue backlog index can be used to stabilize stochastic networks, and that similar stability results h. Introduction technology of endtoend multiple connections and paths have gained a lot of researchers attention in recent years and have been used by several applications1. Key words network utility maximization num, mapping, multipath, inelastic services, utility function. Neely, delaybased network utility maximization, proceedings of the 29th conference on information communications, p. An interiorpoint method for large scale network utility. We prove the stochastic stability of resource allocation under network utility maximization num under general arrival process and. A distributed newton method for network utility maximization, i. Tool for solving network utility maximization problems. The quality impact of video content is incorporated into the definition of utility function. Download citation delaybased network utility maximization it is well known that maxweight policies based on a queue backlog index can be used to stabilize stochastic networks, and that.
Though there are many different versions of the utility function used to optimize a network, most are a simplification of this general network utility maximization function. Because the above network utility maximization num. Utility optimizationbased bandwidth allocation for. Quasioptimal network utility maximization for scalable video. Our contributions in this paper, we consider the general utility maximization problem for multiple multicast in a p2p setting, with multipath delivery and intersession network. Using lyapunov optimization, we extend this analysis to design a utility maximizing algorithm that uses explicit delay information from the headofline packet at. Palomar, member, ieee, and mung chiang, member, ieee tutorial paper abstracta systematic understanding of the decomposability structures in network utility maximization is key to both resource allocation and functionality allocation. Joint perimeter and signal control of urban traffic via. Neely, stochastic network optimization with nonconvex utilities and costs, proc. Theses are the objects which can hold two different types of values generic relational approach.
Index termsdual decomposition, joint ratebattery control, linkbattery capacity constraint, network utility maximization. In this paper, we introduce the notion of network utility maximization for boundary. This a standard definition used by default by the components of the standard library for all types that do not. Wireless network utility maximization daniel oneill, andrea goldsmithand stephen boyd stanford university stanford, ca october 8, 2008 abstract we describe wireless network utility maximization, wnum, and compare its performance to traditional num along the dimensions of rate, delay and reliability under. A users utility rates his satisfaction with respect to the resource allocation.
As the objective function of multipath routing is not strictly concave, the dual problem may not be differentiable for every point when one attempts to use a duality approach. Network utility can be the sum of all users utilities, but some other definitions. The network can then be designed as a distributed solution to this optimization problem. Neely, delaybased network utility maximization, proc. In addition, the impact of linkbattery capacity and initial battery level on the network utility is further investigated. The utility performance and worstcase delay guarantees are proven in section iv. Network model the network is assumed to be a 1hop network that operates in. Peertopeer utility maximization minghua chen, sudipta sengupta, miroslav ponec, philip a. Network utility maximization num for resource allocation. Thus, given the exponential growth of modernday networks in both size and. To our knowledge, there are no prior works that use delaybased scheduling to address the important issue of joint stability and utility optimization.
Optimal demand response based on utility maximization in power networks na li, lijun chen and steven h. Resource allocation for crosslayer utility maximization. If youre not sure which to choose, learn more about installing packages. Video conferencing applications are a good example of such delay sensitive services, where an excessive playback delay. Network utility maximization model with random link failures was presented in this paper. Network utility maximization with random link failures. Delaybased network utility maximization university of southern. Delaybased network utility maximization pdf download. Network utility maximization in adversarial environments qingkai liang and eytan modiano laboratory for information and decision systems massachusetts institute of technology, cambridge, ma technical report abstractstochastic models have been dominant in network optimization theory for over two decades, due to their analytical tractability. Managerial economics it is not from the benevolence of the butcher, the brewer, or the baker that we expect our dinner, but from their regard to their own self interest. Crosslayer optimization for multimedia traffic in cdma cellular networks. Introduction n owadays, many internet applications aim to work not only at maximizing their throughput, but also at meeting crucial delay constraints in the transmission of data.
The objective function we use combines a flows average throughput, l, and packet delay minus propagation delay, d. An asynchronous fixedpoint algorithm for resource sharing with coupled objectives di niu, member, ieee, and baochun li, fellow, ieee abstractdistributed resource allocation and sharing can often be formulated as a utility maximization problem, with the objective. Chou, and jin li abstractin this paper, we study the problem of utility maximization in peertopeer p2p systems, in which aggregate utilities are maximized by running distributed algorithms on p2p nodes that are constrained by their uplink capacities. Network utility maximization in adversarial environments. Other related works such as 9, 10 take the flowbased optimization approach, also known as network utility maximization num, to maximize the delayrelated utility of the users. These works have revealed that queuelengths in the previous works can be viewed as lagrange multipliers of related con.
Michael neely homepage usc viterbi school of engineering. In the num framework, each enduser has its utility function and link bandwidths allocated so that network utility is maximized. Network utility maximization with path cardinality constraints yingjie bi. Inspired by work on network utility maximization num 23 and by machinegenerated algorithms, we start with an objective function to optimize. Network utility shows information about each of your network connections, including the mac address of the interface, the ip. Algorithm ermin weiy, asuman ozdaglar y, and ali jadbabaie z may 11, 2011 abstract most existing works use dual decomposition and rstorder methods to solve network utility maximization num problems in a distributed manner, which su er from slow rate of convergence properties. The network utility maximization num problem is to choose the. Network utility maximization also called layering as optimized decomposition addresses this by presenting the entire layered stack as a single global utility optimization problem.
Using lyapunov optimization, we extend this analysis to design a utility maximizing algorithm that uses explicit delay information from the headofline packet at each user. Improved utilitybased congestion control for lowdelay. Introduction in packet switching networks, a ow, also called a tra c ow, a packet ow or a network ow, is a sequence of packets traversing from a source to a destination 3. In the case of delay sensitive applications, a large delay might not be acceptable and a solution to properly manage congestion events while maintaining a low endtoend delay is required. Delaybased network utility maximization ieee conference. The resulting policy is shown to ensure deterministic worstcase delay guarantees and to yield a throughput utility that differs from the optimally fair value by an amount that is inversely proportional to the delay guarantee. Throughput maximizing multiuser scheduling with adjustable. Information theory and applications workshop ita, feb. In this case we leverage the particular structure of the problem. The authors in 7 further studied this duality gap characterization using ideas from sparse recovery. Network utility maximization for mapping from services to. Each edge has a given capacity, which is the maximum total tra. Consider a communication network with links, each with a.