Modelling cellular system

on Tuesday, December 7
In my previous post, I uploaded a snap shot of GUI version of my simulator. Am interested in developing a professional multi-cell deployment simulator tool with the following features. The targeted end-user client would be an cellular operator, vendor, network deployment study team or non-profit organization for generating whitepapers.

Deployment trends in cellular communication will take a new paradigm shift. Unlike the sectorized deployment of narrowband systems like GSM, the broadband systems like LTE, WiMAX will do frequence reuse deployment. The primary service on these networks are packet data service. The goal would be to provide any-time UP kind of data-pipe, similar to a dedicated broadband DSL connection. Whether the packet data is short time (like Social Network, Messenger updates, or Push POP notifications) or long session connections like watching streaming video (iptv, youtube, widevine ) or uploading live video ( justin TV, ustream). And a reliable connection on-the-go (Dont want a banking transaction query or link to break).  This requires to have sufficient coverage to provide a minimal reliable throughput link. 

Multicell simulation GUI Interface

on Monday, October 11
Have been a long time wish, to make a completely configurable simulator for wireless system all phy layer tuning etc. I have been using itpp and g++ on linux for my simulator work see some description here (Personal blog). Later I added a frontend to manage the input configuration (screenshot  is here)

Now, recently I finished a tool/interface to display a multicell deployment scenario with macro, mobiles and pico/small cells. ( droping of base-stations and nodes, pathloss calculation was done by a friend). The screenshot is

The green dots are pico transmitters, Black are base-stations with directional antennas. Other nodes are receivers and the color shows the SIR of the node (Lowest : blue, Highest Orange). The front-end was developed using Qt library (Open source)


Book on Event based simulation

on Wednesday, October 6

Will read to model traffic and scheduling traffic in mobile system.

Found the solutions to problems here https://noppa.tkk.fi/noppa/kurssi/s-72.2211/luennot/

in reference to: Discrete-Event System Simulation - Google Books (view on Google Sidewiki)

Small cell deployments in next generation wireless technology

on Wednesday, September 8
In my opinion, this is going to drive the new deployment strategy. LTE is purely a data aimed technology. Compared to earlier wireless technology 3G,GSM, cdma2000 which primarily was focused on providing voice.

Think of voice, which consumed the a good and reliable amount of wireless resource (time (GSM slots) or codes (cdma/wcdma long codes)) for short duration of time. While when one is talking about packet services. One does not want to "dial-up" a data session. Its an always on connectivity when you are connected to through a 4G-MOBILE terminal. The "dongle" based access is a different case.

Twitter / ssk: Tata Indicom Launches ‘Cal ...

on Tuesday, August 17
Twitter / ssk: Tata Indicom Launches ‘Cal ...

The basic idea of people moving / using twitter is being short to send /shout and quick-reading. In a regular basis.. not many are enthusiast to write long blogs each day. Twitter helps to quickly and crisply send your status or update/share some info. While this call2twitter might be comparatively better to post than type and tweet.. but reading tweets in a single glance is much much better than selecting a media link and play it.