## 4 Classification of MAC Protocols Based on Channel
### Random Selection Based
#### 4.11.2 Self-Sorting-Based MAC
 } & Reduced collision, and load balancing and packet loss ratio & CSMA & MATLAB & \begin{tabular}{c} Distributed and \\ contention free \\ \end{tabular}  & Collision & \begin{tabular}{c} Hidden terminal \\ problem and \\ overhead \\ \end{tabular}  \\ \hline \multirow{3}{*}{4} & \multirow{3}{*}{SoMMAC [106]} & \multirow{3}{*}{ \begin{tabular}{c} SOFTMAC [57], \\ VeMAC [53] \\ \end{tabular}  } & \multirow{3}{*}{Reduced cost} & Clustering, two-way & \multirow{3}{*}{NS2} & Multi-channel, \multirow{3}{*}{NS2} & \multirow{3}{*}{ \begin{tabular}{c} Efficient \\ multiaction, \\ contention based, \\ distributed, cluster, \\ and TDMA \\ \end{tabular}  } & Efficient & \multirow{3}{*}{ \begin{tabular}{c} Power \\ minimumized \\ collision, and \\ high packet \\ delivery \\ \end{tabular}  } \\ \hline \multirow{3}{*}{5} & \multirow{3}{*}{A VeMAC [71]} & \multirow{3}{*}{VeMAC [53]} & Provide better & TDMA, random & \multirow{3}{*}{Analysis} & \multirow{3}{*}{ \begin{tabular}{c} Reservation based, \\ multi-channel, and \\ two-hop neighbor \\ division \\ \end{tabular}  } & \multirow{3}{*}{ \begin{tabular}{c} Eliminates \\ collision and \\ handles \\ unbalanced \\ traffic \\ \end{tabular}  } & Hidden-node & \multirow{3}{*}{ \begin{tabular}{c} Hidden-node \\ problem and \\ throughput not \\ analysed \\ \end{tabular}  } \\ \cline{1-1}  & & & & Multi-hop data & \multirow{3}{*}{\ \begin{tabular}{c} Decentralized, \\ multi-hop, \\ location based, \\ and priority based \\ \end{tabular}  } & \multirow{3}{*}{ \begin{tabular}{c} Reliable and \\ avoids collision \\ throughput not \\ analysed \\ \end{tabular}  } \\ \cline{1-1}  & & & \begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline
**SR.** & **Protocols** & **Comparison** & **Objective** & **Methodology** & **Simulator** & **Classification** & **Pros** & **Cons** \\
**No.** & & & & & & & & & \\ \hline
7 & NA MAC [74] & HC MAC [108], VeMAC [53] & Efficient slot allocation and hidden terminal & Three-way handshake with TDMA and & NS3 & Distributed single channel & Reliable broadcast of & Broadcast storm problem \\  & & & problem & CSMA/CA & & safety message & problem \\ \hline
8 & OCT MAC [75] & TDMA and & Improves network through and channel quality & Improved channel quality & Improved channel quality & Improved channel quality & Improved channel quality & Improved channel quality & Improved channel quality \\ \hline
9 & AHT MAC [77] & Ve MAC [53], SS & Resource wastage and overhead & Newston, request conflict resolution, and synchronized & NS3 and SUMO & TDMA, multi-channel, and hybrid & Enhanced throughput and less delay & Overhead and packet loss \\  & & & & & & & \\ \hline
10 & SC MAC [110] & TDMA and & & Black burst-based slot & & & \\  & CSMA/CA & CSMA/CA & CSMA, low latency, spatio-temporal and high PDR & & & & \\  & & & and high PDR & coordination, and periodic random & & & \\  & & & & & & & \\  & & & & & & \\  & & & & & & & \\  & & & & & & \\ \hline
11 & TCGAC [78] & VeMAC [53], MoMAC [82] & Minimizes transmission collision and increases throughput & Frame divided into TP (transmission period) and CP (CSMA period), and game theory & MATLAB & TDMA + CDMA based and distributed & Collision & High power consumption and overhead \\ \hline
12 & Lesser [79] & IEEE & Guaranteed safety application in real-time and hostile environments & Slouted 1 persistent & SUMO & Context aware, decentralized, and & Minimized delay and enhanced throughput & Power consumption not analysed \\ \hline \hline \end{tabular}
\end{table} 
Table 3: _Cont._