In practice, the BS can have a large antenna array, RSs must have a smaller array since they must be smaller and inexpensive, and MSs (laptop computers or mobile computing devices) are very limited in size.
The proliferation of mobile computing devices including portable computers, PDAs and handheld devices has created a tremendous demand for wireless local area networks (WLANs).
Since MIMO scheme is considered as the latest multiple access technique for the next generation human computer interaction (HCI) [20] or mobile computing devices, especially in LTE-Advanced system, higher computational complexity inherited with it is inevitable.
Intel predicts that 2008 will be the first year that mobile computing devices will outsell desktop computers.
But PC sales have come under pressure as people have embraced mobile computing devices such as smartphones and tablet computers.Both Microsoft and Intel pooh-pooh talk of a "post-PC world".
Hence, the computational cost and power consumption will be reduced for the next generation MIMO mobile computing devices can be reduced significantly from the reduction of computational complexity.
The reduction of computational complexity in V-BLAST/STBC MIMO scheme will see a significant reduction in computational cost and power consumption for next generation MIMO mobile computing devices.
According to analysts, the industry has been challenged by the rising popularity of mobile computing devices, which use different types of drives, and slowing demand for personal computers.
And its Crusoe processors promise to be contenders in a rapidly growing market for laptops and mobile computing devices.
But PC sales have been falling sharply just as sales of smaller mobile computing devices have taken off.
Originally, Professor Himanen said, mobile computing devices were based on the need for doing things on the move, when working by any other means was impractical.
