Software-Defined Multilayered Admission Control for Quality of Service Assurance in Mobile Ad-hoc Networks

Algorithm 1

Path selection process in the SD_MAC model.

	// Node i broadcasts P_beacon packet to immediate neighbors
	Ni  P_beacon (NId, NRSSI, NSNR, NTS, SOfdprediction_index);
	// Neighbor Node j receives P_beacon packet of Ni node i
	Nj  P_beacon (NId, NRSSI, NSNR, NTS, SOfdprediction_index);
	//extract the beacon of Node i and store in LAT of Node j
	LATj  extract_data();
	Nj  send P_beacon (NId, NRSSI, NSNR, NTS, SOfdprediction_index);
	Ni  P_beacon (NId, NRSSI, NSNR, NTS, SOfdprediction_index);
	LATi  extract_data();
	/∗ entry in LAT contains the following field. 𢅺/
	LATfields = [NHid, NHAvRSSI, NHAvSNR, NHTS, SOfdprediction_index]
	// if source node has data and does not know path to destination
	if (Sn (data) = = “T” && path_to_destination( ) = = “F”) then
	SCNi = Sn_lookup (LATsn);
	end if;
	if (is exist(SCNi)) then // strongly connected neighbor node exists
	// send DPReq packet to SCN found
	Sn  send DPReq (Saddr, Daddr, Seqid, Servicepath, SReqprediction_index)
	// SCN receivesDPReq packet
	SCNi  DPReq (Saddr, Daddr, Seqid, Servicepath, SReqprediction_index)
	Check_QHtable(); //SCN checks QH table
	if (Seqid = = exists()) then
	Discard DPReq();
	else
	if (SOfdprediction_index ≥ SReqprediction_index) then
	append (Servicepath);
	extract_signal_data();
	store_into_LAT();
	forward DPReq() packet to SCN;
	send DRAck() to source //send Ack to source
	end if;
	end if;
	end if;