1. Mustansiriyah University,Electrical Engineering Department,Baghdad,Iraq
2. Universidad Carlos III de Madrid,Department of Signal Theory and Communications,Leganes,Madrid,Spain,28911
3. Al-Mammon University College,Communication Engineering Department,Baghdad,Iraq
4. London Metropolitan University,Center for Communications Technology,London,United Kingdom,N7 8DB
5. Dogus University,Department of Electrical and Electronics Engineering,Istanbul,Turkey,34775
6. University of Birjand,Faculty of Ferdows Technical,Birjand,Iran
7. Yildiz Technical University,Department of Electronics and Communications Engineering,Esenler,Istanbul,Turkey,34220
8. School of Engineering and the Built Environment, Edinburgh Napier University,Edinburgh,United Kingdom,EHI0 5DT
9. University of Palermo,Department of Engineering,Palermo,Sicily,Italy,IT 90128