Skip to main content
Figure 3 | EURASIP Journal on Wireless Communications and Networking

Figure 3

From: Throughput analysis of transmit-nulling SDMA with limited feedback

Figure 3

Channel direction quantizers, n g , m and n g k , m k N, channel direction h ~ k , and its quantized channel direction n g k , m k . The blue surfaces, including n g k , m k and ng,m, on the unit hypersphere describe the corresponding spherical caps, C g k , m k ( sin 2 α) andx C g , m ( sin 2 α). Their areas are the same. Here, the quantization error of channel direction, sin2θ k , is larger than sin2α.

Back to article page