Abstract— The IEEE 802.16 standard, also known as WiMAX,
has emerged as an exciting technology for broadband wireless
communications with potentials to offer high throughput and
support high bandwidth demanding applications. WiMAX,
however, has yet to prove its effectiveness when the end terminals
are not fixed and have the capacity to move from one place to
another at different speeds. Recent studies suggest that while
WiMAX (802.16e) has the potential to deliver a data rate up to 75
Mb/s for fixed wireless communications, it fails drastically for
mobile wireless communications, often providing a data rate less
than 1 Mb/s when the mobile nodes travel at high speeds, which
offers a huge challenge for QoS management. Multipath fading
that causes high bit error rate at the receiver end is a key reason
for low throughput at high speed. Bit error rate and maximum
packet size determine the packet error rate, and error recovery
for higher number of corrupted packets is not always an
attractive option for many real-time applications with delay and
jitter constraints. In this paper, we propose a mathematical
model to estimate the bit error probability when the mobile
station travels at different speeds. The estimated value of bit
error probability is then taken into account to proactively
compute the appropriate maximum packet size that offers the
best chance to achieve improved throughput at different
operating conditions. We simulated the proposed scheme for a
centralized video surveillance system in a public train where the
train is the mobile node and sends real-time video data to the
base stations. The results show that the proposed scheme achieves
significantly higher throughput and lower jitter compared to
other standard schemes.
Keywords- Wireless communication, WiMAX, throughput, bit
error rate.
ONYEDUMEKWU, N. & Godson, E (2018). A Novel Mobile WiMAX Solution for Higher Throughput. Afribary. Retrieved from https://afribary.com/works/a-novel-mobile-wimax-solution-for-higher-throughput
ONYEDUMEKWU, NONSO, and Engr Godson "A Novel Mobile WiMAX Solution for Higher Throughput" Afribary. Afribary, 28 Mar. 2018, https://afribary.com/works/a-novel-mobile-wimax-solution-for-higher-throughput. Accessed 05 Nov. 2024.
ONYEDUMEKWU, NONSO, and Engr Godson . "A Novel Mobile WiMAX Solution for Higher Throughput". Afribary, Afribary, 28 Mar. 2018. Web. 05 Nov. 2024. < https://afribary.com/works/a-novel-mobile-wimax-solution-for-higher-throughput >.
ONYEDUMEKWU, NONSO and Godson, Engr . "A Novel Mobile WiMAX Solution for Higher Throughput" Afribary (2018). Accessed November 05, 2024. https://afribary.com/works/a-novel-mobile-wimax-solution-for-higher-throughput