Download 4G Femtocells: Resource Allocation and Interference by Haijun Zhang, Xiaoli Chu, Xiangming Wen PDF

By Haijun Zhang, Xiaoli Chu, Xiangming Wen

This short examines source allocation and interference administration for 4G femtocells. It introduces 4G femtocells within the context of 4G cellular networks and discusses similar technical demanding situations in source allocation and interference administration. issues comprise ant colony set of rules dependent downlink source allocation, clever scheduling and tool keep watch over, uplink and downlink for two-tier networks, caliber of carrier (QoS) constraints and the cross-tier interference constraint. The authors current algorithms to relieve universal femtocell-related difficulties reminiscent of subchannel energy allocation. The complexity of the proposed source allocation algorithms is analyzed, and the effectiveness of the proposed algorithms is confirmed by means of simulations. This concise and functional e-book at once addresses universal difficulties in relation to femtocells and source administration. It serves as a great tool for researchers within the box. Advanced-level scholars or execs drawn to femtocells and networks also will locate the content material helpful.

Show description

Read Online or Download 4G Femtocells: Resource Allocation and Interference Management PDF

Best tablets & e-readers books

Beginning Building Mobile Application Development in the Cloud

Find out how to construct apps for cellular units on Cloud systems the market for apps is ever increasing, expanding the capability to generate profits. With this consultant, you are going to the way to construct cross-platform purposes for cellular units which are supported via the ability of Cloud-based prone comparable to Amazon net providers.

The PayPal Official Insider Guide to Mobile Profits: Make money anytime, anywhere (PayPal Press)

Cellular trade possibilities are in all places humans move, 24/7. And PayPal is within the vanguard of harnessing these possibilities, supplying cellular companies quicker, more straightforward, more secure, and extra confident buyer checkout studies. PayPal’s cellular checkout instruments help ecocnomic web content and apps on all of today’s smartphones, drugs, and different transportable units.

Mac OS X Snow Leopard for Power Users: Advanced Capabilities and Techniques

Mac OS X Snow Leopard for strength clients: complicated functions and strategies is for Mac OS X clients who are looking to transcend the most obvious, the normal, and the simple. If are looking to dig deeper into Mac OS X and maximize your talents and productiveness utilizing the world's slickest and so much based working approach, then this is often the ebook for you.

Oracle Solaris and Veritas Cluster : An Easy-build Guide: A try-at-home, practical guide to implementing Oracle/Solaris and Veritas clustering using a desktop or laptop

Examine the basic innovations of OS clustering, Oracle Solaris clustering high-level layout, Oracle Solaris clustering implementation utilizing VirtualBox, and Veritas clustering implementation utilizing VirtualBox. Oracle Solaris and Veritas Cluster: An Easy-build advisor exhibits you ways to enforce a cluster in your machine or computing device units utilizing virtualized community, host, and garage configuration.

Extra info for 4G Femtocells: Resource Allocation and Interference Management

Example text

5) is concave [16]. 6) are convex, the feasible set 42 4 Resource Allocation in Femtocells with Cross-Tier Interference Limits of the objective function is convex. 5) has a unique optimal solution, which may be obtained in polynomial time. 5) is solved by using the Lagrangian dual decomposition method. 6) will be absorbed in the Karush-Kuhn-Tucker (KKT) conditions [16], as it will be shown later. t. 7) into a master problem and K × N subproblems. The dual problem can be solved iteratively with each FBS solving the corresponding local subproblem via local information in each iteration.

We first model the uplink power and subchannel allocation in femtocells as a non-cooperative game, where inter-cell interference is taken into account in maximizing the femtocell capacity and uplink femto-to-macro interference is alleviated by charging each femto user a price proportional to the interference that it causes to the macrocell. Based on the non-cooperative game, we then devise a semi-distributed algorithm for each femtocell to first assign subchannels to femto users and then allocate power to subchannels.

1 0 1 2 3 4 5 Number of Femto Users per Femtocell 6 Fig. 4 Tiered fairness versus the number of femto users F in each femtocell with the number of macro users M = 50 non-cooperative game framework. Using the proposed algorithm, each femtocell can maximize its capacity through resource allocation, taking into account intercell interference reported by its femto users, and with uplink femto-to-macro interference alleviated by a pricing scheme imposed on femto users. It has been shown through simulations that the proposed interference-aware resource allocation algorithm is able to provide improved capacities of both macrocell and femtocells, together with comparable tiered fairness, as compared with the existing unpriced subchannel allocation and MIWF based power allocation algorithm.

Download PDF sample

Rated 4.77 of 5 – based on 50 votes