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Table 1 Average performance gap against the dual optimal upper bound for small system configuration

From: Dual-based bounds for resource allocation in zero-forcing beamforming OFDMA-SDMA systems

Method

Minimum rate (bps/Hz)

 

13.33

16.66

20

Dual-based upper bound (bps/Hz)

49.13

47.12

40.8

Primal enum. gap (%)

0.57

0.55

0.10

Dual-based feas. gap (%)

0.57

0.59

0.04

Weight mod. gap (%)

0.68

0.71

0.15