This book constitutes the refereed proceedings of the 9th International Conference on Next Generation Teletraffic and Wired/Wireless Advanced Networking, NEW2AN 2009, held in conjunction with the Second Conference on Smart Spaces, ruSMART 2009 in St. Petersburg, Russia, in September 2009.

The 32 revised full papers presented were carefully reviewed and selected from a total of 82 submissions. The NEW2AN papers are organized in topical sections on teletraffic issues; traffic measurements, modeling, and control; peer-to-peer systems; security issues; wireless networks: ad hoc and mesh; and wireless networks: capacity and mobility. The ruSMART papers start with an invited talk followed by 10 papers on smart spaces.

Wewelcomeyoutothejointproceedingsofthe8thNEW2AN2008(NextGene- tionTeletra?candWired/WirelessAdvancedNetworking)andthe1struSMART 2008conferencesheldin St. Petersburg, Russia onSeptember 1-5,2008. This year NEW2AN features signi?cant contributions to various aspects of networking. The topics presented encompass several layers of communication networks: from the physical layer to transport protocols. In particular, issues of QoS in wireless and IP-based multi-service networks are dealt with. Cross-layer optimization and tra?c characterization are also addressed within the program. It is also worth mentioning the emphasis on wireless networks, including, but not limited to, cellular networks, wireless local area networks, personal area networks, mobile ad hoc networks, and sensor networks. The NEW2AN 2008 call for papers attracted 60 papers from 19 countries, resulting in an acceptance ratio of 35%. With the help of the excellent Technical Program Committee and a number of associated reviewers, the best 21 hi- quality papers were selected for publication. The conference was organized in 7 single-track sessions. We wish to thank the Technical Program Committee members of each of the conferences and the associated reviewers for their hard work and important contribution to the conference. The ?rst Russian Conference on Smart Spaces, ruSMART 2008, was the ?rst conference in Russia to address this topic. It aimed to attract academic and industrial researchers to an emerging area of Smart Spaces that creates c- pletely new opportunities for making fully-customized applications and services for the users. The conference was a meeting place for leading experts from top a?liationsaroundthe world.Itattractedactiveparticipationanda strongint- estfromRussianattendees, whohaveagoodreputationforhigh-qualityresearch and business in innovative service creation and applications developme