The demand in communication capacity is achieved by the employment of the space division multiple access technique. The signal transmitted on the same frequencies can be separated by the smart antenna array and they are separated in spatial domain. Which increase the performance and improved network efficiency of the mobile system.

　　The features of a wireless channels are thin. Hence for some region the characteristics are zero. Since in spatial domain it varies with DOA. For reducing the bandwidth requirement sparsely spaced element is needed for -The demand in communication capacity is achieved by the employment of the space division multiple access technique. The signal transmitted on the same frequencies can be separated by the smart antenna array and they are separated in spatial domain. Which increase the performance and improved network efficiency of the mobile system.　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

　　　　　　The features of a wireless channels are thin. Hence for some region the characteristics are zero. Since in spatial domain it varies with DOA. For reducing the bandwidth requirement sparsely spaced element is needed for