May be you are not aware of complete picture. I am also very suspicious of your claims when you say that QPSK is cause of mobility and Wimax to be only technology for laptop applications and other portable devices.

As you would know that PTA sold 3.5GHz spectrum used by Wimax but the common and widely used UMTS spectrum of 2.1GHz is not auctioned in Pakistan.

Coming to your news paste of Redline Communications, all new and future technologies can do it and it would be miserable if anyone fails on it.

Good work for yours 256 differential transceiver.

OFDM 802.16e highlights the operator’s need for a smooth path to mobility; one that provides a future-proof solution, protects their investment and provides a sound business case. For the operator who is deploying fixed wireless access solutions today, and who wants to offer nomadic or mobile services in the future, OFDM256 is the only choice.

As far as i am concerned i have personally implemented 256 differential transciever whoes video demo is available at http://ahsancomsats.googlepages.com/ so i have studied it.

if 3G was of any use then operators like Mobilink might be giving some respect to that.

Mobile Broadband Wireless Access (MBWA) is a technology being developed by IEEE 802.20 and is a aimed at wireless mobile broadband for operations from 120 to 350 km/h.

so nothing will happen if we will stick to technologies rejected by the world and with moving world we must also develope our knowledge.

on 10/17/08 Redline Communications Group featured a live demonstration of its RedMAX 4C Mobile WiMAX , The RedMAX 4C, which is based on the WiMAX industry’s 802.16e-2005 standards for mobile WiMAX, supports a wide range of fixed, portable and mobile wireless services including support for Voice and Video over IP, broadband Internet access used to support highly valued education, medical, transportation and municipal applications, VPNs (Virtual Private Networks) and other advanced communications services.

Accoding to my knowledge In September 2005 NTT DoCoMo succeeded receive data with 100 megabits per second. This experiment was done in movement; the prototype phones were used to view 32 high definition video streams while traveling with a car the speed of 20 km per hour.

please keep up with changing technologies!!

Mr. Ahsan, I being myself an advance researcher of OFDM can confirm that OFDM and adaptive OFDM cannot perform under conditions where user is traveling at speed more than 35 miles/hour.

I am so sorry that I cannot match your knowledge of OFDM but i wonder how modulation scheme can bring mobility in Wimax.

Streaming rates that you are referring to are different than FTP data rates. Then as you might know that every user has subscriber class for different services which effects QoS.

In my first blog i wrote that I myself used HS in Munich. Commercial UEs/datacards supporting 7.2Mbps are available in market. May be you want to read Rizwan Hasan’s blog in which he wrote about his same experience as mine.

I will try to read more about Wimax as per your suggestion but I believe you know about coding, interleaving and power control in CDMA which combats fading besides CDMA itself is spread spectrum technology.

Dear Misbah,

You are too assumptive Now you have a new thought about December I am in no position to comment about MVNO, Warid and PTA. You would be in better position than me to conclude anything on these issues.