The SS-SCR Scheme for Dynamic Spectrum Access

Table 2

SS-SCR.

	Node set (ℕ)	Band-set (𝕄)	Session set (𝕃)	𝑃avl𝑖 (𝑊)
(Ia)^*	All SUs; PU Tx 2, PU Rx 2	𝕄1⋃𝕄2	SUs, PU 2	𝑃node𝑖
(Ib)	All SUs; PU Tx 2, PU Rx 2	𝕄2	PU 2	𝑃node𝑖
(Ic)	All SUs	𝕄1⋃𝕄2	SUs	𝑃node𝑖
(Id)	All SUs	𝕄2	SUs	𝑃node𝑖

^* Note: A provision should be made to prevent the SUs from relaying their data through PU Tx 2 and PU Rx 2 by means of additional constraints: 𝑥^{(𝑚)𝑖𝑗}=0, 𝑗=PUTx2 and 𝑥^{(𝑚)𝑖𝑗}=0, 𝑖=PURx2.