Starter Deal! First 3 month from only $9.9 /month!
Starter Deal! First 3 month from only $9.9 /month!
Grab It Now 
Tencent RTC Blog
Tencent RTC Blog
Tech

Exploring the Trade-Offs: Throughput vs Latency in Real-Time Communication

Tencent RTC - Dev Team

Throughput-Latency.png

Throughput is characterized as the volume of data transmitted over the network per unit time, generally measured in bits per second. It gives a measure of a network's capacity to carry data. In contrast, Latency refers to the delay that occurs when transmitting data over the network, representing the time taken for a data packet to travel from source to destination.

In real-time communication, maintaining an optimal balance between throughput and latency is critical for ensuring efficient data transfer and minimizing network congestion.

Deeply understanding the terms, in real-time communication, throughput and latency must exist in equilibrium. High throughput may lead to congestion and increase in latency, disrupting real-time data flow. On the other hand, minimal latency necessitates efficient and fast data transfer, requiring an optimized throughput. This balancing helps maintain efficient communication.

What is Throughput?

In essence, throughput refers to the total amount of data that the network is capable of transmitting in a specific time frame. It is often measured in bits per second (bps), outlining the volume of information efficiently moved from source to destination.

In the realm of real-time communication, throughput is a critical factor. High-throughput rates mean that data is transferred quickly and efficiently, enhancing the seamlessness and effectiveness of voice and video calls.

Beyond its importance in delivering clear and uninterrupted communication, harnessing the power of throughput also influences other key components. This includes network performance, bandwidth utilization, and overall user experience.

What is Latency?

Latency is a critical element that determines the rapid response times during audio or video real-time communication. It refers to the delay that occurs as data packets travel from the source to the destination.

Typically, a lower latency indicates a faster transmission. This is critical as high latency levels could lead to disjointed conversations, creating a poor user experience in real-time communication.

Diving deep into latency, it's synonymous with the term 'transmission delay.' This encompasses the time it takes for a packet to travel from the sender to the receiver, including propagation, serialization, and queuing delays.

The Importance of Balancing Throughput and Latency

Having both high throughput and low latency is crucial to attain optimal real-time communication performance. Their balance ensures seamless and instant data transmission, thus enhancing user experience.

Striving for harmony between throughput and latency is key to achieving superior communication. This synergy optimizes network efficiency and guarantees a smoother and more responsive interaction for users.

What are the differences between Throughput and Latency in Real-Time Communication?

Real-time communication, such as audio and video calls, relies on efficient and reliable data transmission. When discussing the performance of real-time communication systems, two important metrics to consider are throughput and latency. While both are crucial in evaluating the quality of communication, they represent different aspects of the system's performance. Let's delve into the differences between throughput and latency in real-time communication.

Throughput refers to the amount of data that can be transmitted over a network in a given amount of time. It is measured in terms of bits per second (bps) or its multiples such as kilobits per second (Kbps) or megabits per second (Mbps). In the context of real-time communication, throughput determines the capacity of the network to handle the data required for smooth and uninterrupted communication. It reflects the system's ability to transmit audio and video streams without significant delays or packet loss.

On the other hand, latency refers to the delay experienced by data packets as they travel across a network. It is measured in milliseconds (ms) and represents the time taken for a packet to travel from the sender to the receiver. In real-time communication, latency directly affects the responsiveness and quality of the communication experience. Lower latency means less delay between sending a packet and receiving it, resulting in more real-time and synchronized communication.

While throughput and latency are related, they are distinct metrics. Throughput focuses on the quantity of data transmitted, while latency emphasizes the speed and responsiveness of the communication. A high throughput indicates anetwork's capacity to handle large amounts of data, while low latency ensures quick and smooth data transmission.

Developer