Apparatus and method for determining multi-antenna radiated performance of wireless devices
An apparatus and method for determining radiated performance of multiple antennas in a wireless system on the basis of capacity degradation comprising calculating a plurality of normalized IID channel matrices based on a plurality of complex gain patterns; calculating a plurality of colored channel matrices based on the plurality of normalized IID channel matrices; calculating a first channel capacity corresponding to the plurality of normalized IID channel matrices; calculating a second channel capacity corresponding to the plurality of colored channel matrices; and calculating a capacity degradation based on the first channel capacity and the second channel capacity.
1. A method for determining radiated performance of multiple antennas in a wireless system on the basis of capacity degradation comprising:
calculating a plurality of normalized IID channel matrices based on a plurality of complex gain patterns;
calculating a plurality of colored channel matrices based on the plurality of normalized IID channel matrices;
calculating a first channel capacity corresponding to the plurality of normalized IID channel matrices;
calculating a second channel capacity corresponding to the plurality of colored channel matrices; and
calculating a capacity degradation based on the first channel capacity and the second channel capacity.
2. The method of claim 1 wherein the plurality of normalized IID channel matrices is associated with a Rayleigh fading channel.
3. The method of claim 1 wherein the plurality of normalized IID channel matrices is associated with a Rician fading channel.
4. The method of claim 1 further comprising measuring a complex gain pattern for each of a plurality of antennas to obtain the plurality of complex gain patterns.
5. An apparatus comprising a processor and a memory, the memory containing program code executable by the processor for performing the following:
calculating a plurality of normalized IID channel matrices based on a plurality of complex gain patterns;
calculating a plurality of colored channel matrices based on the plurality of normalized IID channel matrices;
calculating a first channel capacity corresponding to the plurality of normalized IID channel matrices;
calculating a second channel capacity corresponding to the plurality of colored channel matrices; and
calculating a capacity degradation based on the first channel capacity and the second channel capacity.
6. The apparatus of claim 5 wherein the plurality of normalized IID channel matrices is associated with a Rayleigh fading channel.
7. The apparatus of claim 5 wherein the plurality of normalized IID channel matrices is associated with a Rician fading channel.
8. The apparatus of claim 5 further comprising an antenna measurement unit for measuring a complex gain pattern for each of a plurality of antennas to obtain the plurality of complex gain patterns.
9. An apparatus for determining radiated performance of multiple antennas in a wireless system on the basis of capacity degradation comprising:
means for calculating a plurality of normalized IID channel matrices based on a plurality of complex gain patterns;
means for calculating a plurality of colored channel matrices based on the plurality of normalized IID channel matrices;
means for calculating a first channel capacity corresponding to the plurality of normalized IID channel matrices;
means for calculating a second channel capacity corresponding to the plurality of colored channel matrices; and
means for calculating a capacity degradation based on the first channel capacity and the second channel capacity.
10. The apparatus of claim 9 wherein the plurality of normalized IID channel matrices is associated with a Rayleigh fading channel.
11. The apparatus of claim 9 wherein the plurality of normalized IID channel matrices is associated with a Rician fading channel.
12. The apparatus of claim 9 further comprising means for measuring a complex gain pattern for each of a plurality of antennas to obtain the plurality of complex gain patterns.
13. A non-transitory computer-readable medium storing a computer program, wherein execution of the computer program is for:
calculating a plurality of normalized IID channel matrices based on a plurality of complex gain patterns;
calculating a plurality of colored channel matrices based on the plurality of normalized IID channel matrices;
calculating a first channel capacity corresponding to the plurality of normalized IID channel matrices;
calculating a second channel capacity corresponding to the plurality of colored channel matrices; and
calculating a capacity degradation based on the first channel capacity and the second channel capacity.
14. The non-transitory computer-readable medium of claim 13 wherein the plurality of normalized IID channel matrices is associated with a Rayleigh fading channel.
15. The non-transitory computer-readable medium of claim 13 wherein the plurality of normalized IID channel matrices is associated with a Rician fading channel.
16. The non-transitory computer-readable medium of claim 13 wherein execution of the computer program is also for measuring a complex gain pattern for each of a plurality of antennas to obtain the plurality of complex gain patterns.