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Roaming in heterogenous access networks

Keywords: wireless networks, mobile networks, beyond 4G, femto-cells

  • Masterthesis at UNIK and KTH (Possibly also at Telenor)


  • Ayaz K. Afridi defended his thesis. (April 2011)
  • Bilal Ahmad in the last mile.
  • Thesis will start 1. April (tentative)
  • Detailed work status,
  • Ayaz K Afridi and Muhammad Bilal Ahmad started 20. September 2010.
Information on simulation environment or Matlab codes
To do list
  • Link model for LTE (reference: books, ineternet)
  • Include the link model to Omnet++

In the workspace you will add your staff

Workspace for Ayaz
Workspace for Bilal

Suggested literature

Related research near to the topic

  • J. Perez-Romero, O. Sallent, R. Agusti, "Impact of Indoor Traffic on W-CDMA Capacity". look at the formulas and simulation results quite useful for us.
  • J. Perez-Romero, O. Sallent, R. Agusti, "On the Capacity Degradation in W-CDMA Uplink/Downlink Due to Indoor Traffic".
  • F. Adelantado, O. Sallent, J. Perez-Romero, R. Agusti, "Impact of Traffic Hotspots in 3G W-CDMA Networks".
  • Key Leong Thng, Boon Sain Yeo and yong Huat Chew, "Performance Study on the Effects of Cell-Breathing in WCDMA".
  • Josef Noll, Mohammad M. R. Chowdhury, "5G - Service Continuity in Heterogeneous Environments", submitted article (.pdf Δ)
  • Jörgen Grinnes, "Mobile Broadband - Todays and tomorrows expectations of customer requirements", Norwegian UMTS Forum, February 2010 (.pdf Δ)
  • J. Noll, K. Baltzersen, A. Meiling, F. Paint , K. Passoja, B. H. Pedersen, M. Pettersen, S. Svaet, F. Aanvik, G. O. Lauritzen. '3rd generation access network considerations'. selected pages from FoU R 3/99, Jan 1999 (.pdf)Δ
  • G.E. Øien, "Radio interface and access technologies for wireless and mobile systems beyond 3G", Telektronikk 3.2004, .pdfΔ

Propagation Models

Online resources


  • LTE for 4G Mobile Broadband, Air Interface Technologies and Performance, Farooq Khan Samsung Telecommunications America, Richardson, Texas, Cambridge Press.
  • LTE, The UMTS Long Term Evolution: From Theory to Practice, Stefania Sesia (Editor), Issam Toufik (Editor), Matthew Baker (Editor), WILEY.

Lingyang Song says these two books best currently the best in the market. But we may not get complete information what we are looking for from the books especially the issues of cell-breadthing.

Contacts: (please update your info at People)
Muhammad Bilal Ahmad, , m: +46 76 5830227
Ayaz Khan Afridi, , m: +46 7393 96553
Mohammad Mushfiqur Rahman Chowdhury, , m: 9579 8902
Toan Hoang, , m: 90594880
Josef Noll, , p: 6484 4745, m: 9083 8066
Victoria Fodor; Associate Professor, Laboratory for Communication Networks, KTH, Phone: +46 8 790 4268 E-mail:

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Page last modified on May 15, 2011, at 06:59 PM EST