Metal conductors, such as copper cables, have several limitations compared to fibre optics and wireless transmission. One of the primary limitations is bandwidth; metal conductors offer considerably lower data transmission speeds than fibre optics. They are also more susceptible to signal degradation over long distances, requiring the use of repeaters to maintain signal integrity. Furthermore, metal cables are vulnerable to electromagnetic interference (EMI), which can distort the signal and reduce data quality. This makes them less suitable for environments with high levels of EMI, such as near industrial machinery or power lines. Additionally, metal conductors have a higher security risk since they can be more easily tapped into for data interception compared to fibre optics, which require physical cutting of the cables, thus disrupting the transmission and alerting to the breach.

Fibre optic cables are largely immune to weather conditions; they are not affected by rain, temperature changes, or electromagnetic interference from storms, which can be a significant advantage over metal conductors. However, physical damage to fibre optic cables, such as that caused by construction work or natural disasters, can disrupt service. Wireless transmission, in contrast, can be significantly affected by weather conditions. Rain, fog, and other forms of atmospheric moisture can absorb or scatter the wireless signals, reducing their strength. Similarly, extreme temperatures can affect the performance of hardware components in wireless networks. Moreover, obstacles such as buildings and trees can obstruct signal paths, affecting signal strength and network reliability.

Wireless transmission is often preferred in scenarios where flexibility, mobility, and ease of installation are key considerations. It is ideal for environments where physical cabling is impractical, expensive, or disruptive, such as in historic buildings, across expansive outdoor areas, or in rapidly changing environments like trade shows or temporary venues. Wireless networks are also essential for mobile devices and for applications where users need to move freely while maintaining network connectivity, such as in hospitals, campuses, and large office buildings. In situations where scalability and quick deployment are crucial, setting up a wireless network can be faster and more cost-effective than laying down physical cables. However, the choice between wireless and wired transmission depends on a comprehensive assessment of factors including speed, capacity, security, reliability, and cost.

Installation and maintenance of transmission media vary significantly. Metal conductors like copper cables are relatively easy and inexpensive to install but may require more frequent maintenance due to susceptibility to damage and degradation (such as corrosion). They might need replacements or repairs, especially in areas with extreme environmental conditions. Fibre optic cables, while more challenging and costly to install due to their fragility and the need for specialised equipment and handling, require less maintenance once in place. They are less prone to physical degradation and interference, leading to longer lifespans and more stable network performance. Wireless networks eliminate the need for physical cabling to each access point, making initial setup simpler in some aspects. However, maintaining strong and secure wireless coverage can be complex, requiring regular updates, monitoring, and potentially additional equipment (like repeaters) to ensure robust network coverage.

Different transmission media have varying environmental impacts. Metal conductors, often copper or aluminium, can have significant environmental impacts due to mining, processing, and disposal. The extraction and processing of these metals often involve energy-intensive activities, contributing to pollution and habitat destruction. Fibre optic cables, on the other hand, are generally more environmentally friendly. Their production requires less raw material than metal cables, and because they are capable of carrying more data over longer distances with less energy, they are a more sustainable choice in the long term. Wireless transmission, while avoiding the direct environmental impact of physical cable installation, does raise concerns related to electromagnetic radiation and energy consumption of wireless network infrastructure. As the wireless technology advances, its infrastructure becomes denser, potentially increasing the ecological footprint. Hence, sustainable and efficient design and deployment of these technologies are crucial to minimise their environmental impact.