Between Geocode and the new Geode, the namespace for software projects beginning with GE is becoming very, very polluted.
Oct 07
Sep 17
Oct 25
This has been a slow week. After the initial euphoria installing Cygwin, I’ve discovered some “issues”:
- Never, never use a user name with non-standard characters. I used my name: Iv?n. Initially it seemed to work fine, but installing X and using svn (for getting Gecode-J sources) is very troublesome.
- GecodeJ could be the answer for modelling and working in Gecode without the pain of using C++, but the current version doesn’t compile. Period. I’m technical savvy enough, I’ve compiled linux kernels, used command line tools without fear, but I simply cannot compile GecodeJ from sources. I hope to resolve the matter this week.
I’ve read:
- Network Optimization trials of a vendor-independent methodology using the Ocelot(R) Tool, by Lawrence Drabeck, Michael Flanagan, Jayanthi Srinivasan…: This paper describes a radio frecuency optimization service to improve performance of cellular networks. The parameters involved in the optimization were: cell-power level, pilot power, antenna tilt and antenna orientation.
- GSM, GPRS and EDGE Performance: Chapter 8, Dynamic Frequency and Channel Allocation: a review of the dynamic and hybrid channel allocation algorithms in GSM.
Oct 18
Finally I installed Cygwin in my Windows XP box. It seems trivial, but since my computer was replaced I was hesitant to do a dual boot (Windows and Ubuntu). I decided to trial Cygwin because I’ve seen it in action and it seems the perfect blend of Windows and Unix worlds. I can use the bash shell, compilers (g++), even xemacs!
I could compile Gecode from the sources, it takes 8 - 10 minutes and began to examine the examples.
I started a “Wireless Communications” course given by mi tutor: Andrés Navarro in Icesi University, I expect to review CDMA and GSM protocols.
I´ve read:
- “Parallel search in Gecode“, written by Monrten Nielsen as a Master of Science Thesis, his examiner was Dr. Chistian Schulte, Gecode´s father. Is a very useful paper, a clear exposition of the principal concepts in Gecode and its internal architecture.
- GSM, GPRS and EDGE Performance: Chapters 1, 2, 3. An introduction (sometimes too technical) to the intricacies in GSM.

