Combined Sector and Channel Hopping Schemes for Efficient Rendezvous in Directional Antenna Cognitive Radio Networks

Algorithm 6

IPES-SCH generation algorithm.

Input: , Extended-ID , .

(1) Construct an IPES-SH sequence as explained in

Section 4.1.2.

(2) period = length(a).

(3)

(4) while  (not rendezvous)  do

(5) Current-sector = mod period.

(6) Steer the antenna to (Current-sector).

(7) BCL = [1 : n][Current-sector].

(8) if  (Current-sector is a P-sector)  then

(9) Construct a GCQ-CH sequence based on BCL.

(10) for () do

(11) Attempt rendezvous on channel .

(12) end for

(13) else

(14) Construct a GRQ-CH sequence based on BCL.

(15) for () do

(16) Attempt rendezvous on channel .

(17) end for

(18) end if

(19) .

(20) end while