Achieving Fair Spectrum Allocation and Reduced Spectrum Handoff in Wireless Sensor Networks: Modeling via Biobjective Optimization

Figure 5

Evaluation of function values of and , fairness index, and spectrum utilization according to various . The “INSR” on -axis indicates . We measure both integer and NLP relaxed function values of , , , and.

(a) Function value of

(b) Function value of

(c) Fairness index and spectrum utilization