## 8 Conclusions  
6G technology is promising to revolutionise many industries and is believed to be the foundation for the realisation of the full potential of the IoT. However, the literature has had its say on the future of 6G and whether or not it is capable of fulfilling the growing connectivity demand, across all societies and industries. Not surprisingly, numerous studies in the literature have started conceptualising and identifying potential use cases that will benefit from the 6 th generation of mobile networks. In this paper, we presented a novel approach to the review of the literature around the potential of 6G technology, especially in the context of the IoT. The authors discussed five use cases from previous studies conducted in the health, energy, transport, and industry  
\begin{table}
\begin{tabular}{p{56.9 pt} p{113.8 pt} p{113.8 pt} p{113.8 pt}} \hline \hline
**Sector** & **Use Case** & **Challenges** & **Opportunities and Future Directions: What Can 6G Offer? ** & **Relevant Literature** \\ \hline \multirow{6}{*}{Healthcare} & \multirow{6}{*}{Human Activity Monitoring} & 1. High latency 2. Limited number of sensing nodes 3. Reliable communication of critical information & 1. High data rates 2. Ultra-low latency 3. Unlimited number of sensing nodes & 2. Ultra-low latency 3. Unlimited number of sensing nodes & 19; 24; 25; 26; 27; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42] by integrating them in the 6G radio antennas 4. Utilising IRS & 19; 24; 26; 27; 32; 33; 34; 42] by integrating them in the 6G radio antennas 4. Utilising IRS & 24; 27; 32; 34; 43; 44; 45; 46; 47; 48; 49; 50; 51; 52; 53; 54; 55; 56; 57; 58] \\  & \multirow{6}{*}{Human Activity Monitoring} & 1. Limited Number of objects’ classification 2. Limited computing power 3. Delay in video feed & 1. Edge Computing 2. Ultra-lo latency 3. Large network coverage & 43; 44; 45; 46; 47; 48; 49; 51; 52; 53; 54; 55; 56; 57; 58] \\  & \multirow{6}{*}{Promoting Energy-conscious Behaviour in the NHS [66]} & 1. Limited data logging rates 2. Limited data resolution 3. Limited energy-load resolution & 1. Network Intelligence 2. Service Intelligence 3. High data rates 4. Ultra-low latency 5. Unlimited number of energy sensing nodes & 2; 18], 59; 80; 81] \\ \hline \multirow{6}{*}{Transport} & Predicting the Intent to a Vehicle [90; 91; 92] & Real-time ubiquitous communication between the driver and the car 4. Reliable communication links & 1. Connectivity for all things 2. Ultra-low latency 3. High data rates 4. Reliable communication links & 106; 108; 109; 96; 107; 108; 109; 110; 111; 112; 113; 114; 115; 116; 117; 118; 119; 120; 121; 122; 123; 124; 125; 126; 127; 128; 129; 130; 131; 132; 133; 134; 135; 136; 137; 138; 139; 140; 141; 142; 143; 144; 145; 146; 147; 148; 149; 150; 151; 152; 153; 154; 155; 156; 157; 158; 159; 160; 161; 162; 163; 164; 165; 166; 167; 168; 169; 170; 171; 172; 173; 174; 175; 176; 177; 178; 179; 180; 181; 182; 183; 184; 185; 186; 187; 188; 189; 190; 191; 192; 193; 194; 195; 196; 197; 198; 199; 200; 201; 202; 203; 204; 205; 206; 207; 208; 209; 210; 211; 212; 213; 214; 215; 216; 217; 218; 219; 223; 224; 225; 226; 227; 228; 229; 230; 231; 232; 233; 234; 235; 236; 237; 238; 239; 240; 241; 242; 243; 244; 25; 246; 247; 248; 249; 250; 251; 252; 253; 254; 255; 256; 257; 258; 259; 260; 252; 257; 259; 261; 262; 263; 264; 265; 266; 267; 268; 269; 270; 271; 272; 273; 274; 275; 276; 2778; 279; 280; 281; 282; 283; 284; 285; 286; 287; 288; 289; 290; 287; 289; 288; 289; 289; 281; 284; 286; 287; 289; 288; 289; 282; 289; 291; 285; 286; 287; 288; 289; 292; 300; 301; 302; 303; 304; 305; 306; 307; 308; 309; 311; 312; 313; 314; 315; 316; 317; 318; 319; 320; 332; 335; 324; 325; 326; 327; 328; 329; 330; 336; 337; 338; 339; 340; 341; 342] \\  & \multirow{6}{*}{Human Activity Monitoring} & 1. High latency 2. Limited number of sensing nodes 3. Reliable communication of critical information & 1. High data rates 2. Ultra-low latency 3.